June 2021 - Linux-stable-mirror

FAILED: patch "[PATCH] KVM: SVM: Call SEV Guest Decommission if ASID binding fails" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 934002cd660b035b926438244b4294e647507e13 Mon Sep 17 00:00:00 2001 From: Alper Gun <alpergun(a)google.com> Date: Thu, 10 Jun 2021 17:46:04 +0000 Subject: [PATCH] KVM: SVM: Call SEV Guest Decommission if ASID binding fails Send SEV_CMD_DECOMMISSION command to PSP firmware if ASID binding fails. If a failure happens after a successful LAUNCH_START command, a decommission command should be executed. Otherwise, guest context will be unfreed inside the AMD SP. After the firmware will not have memory to allocate more SEV guest context, LAUNCH_START command will begin to fail with SEV_RET_RESOURCE_LIMIT error. The existing code calls decommission inside sev_unbind_asid, but it is not called if a failure happens before guest activation succeeds. If sev_bind_asid fails, decommission is never called. PSP firmware has a limit for the number of guests. If sev_asid_binding fails many times, PSP firmware will not have resources to create another guest context. Cc: stable(a)vger.kernel.org Fixes: 59414c989220 ("KVM: SVM: Add support for KVM_SEV_LAUNCH_START command") Reported-by: Peter Gonda <pgonda(a)google.com> Signed-off-by: Alper Gun <alpergun(a)google.com> Reviewed-by: Marc Orr <marcorr(a)google.com> Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com> Message-Id: <20210610174604.2554090-1-alpergun(a)google.com> diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index e0ce5da97fc2..8d36f0c73071 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -199,9 +199,19 @@ static void sev_asid_free(struct kvm_sev_info *sev) sev->misc_cg = NULL; } -static void sev_unbind_asid(struct kvm *kvm, unsigned int handle) +static void sev_decommission(unsigned int handle) { struct sev_data_decommission decommission; + + if (!handle) + return; + + decommission.handle = handle; + sev_guest_decommission(&decommission, NULL); +} + +static void sev_unbind_asid(struct kvm *kvm, unsigned int handle) +{ struct sev_data_deactivate deactivate; if (!handle) @@ -214,9 +224,7 @@ static void sev_unbind_asid(struct kvm *kvm, unsigned int handle) sev_guest_deactivate(&deactivate, NULL); up_read(&sev_deactivate_lock); - /* decommission handle */ - decommission.handle = handle; - sev_guest_decommission(&decommission, NULL); + sev_decommission(handle); } static int sev_guest_init(struct kvm *kvm, struct kvm_sev_cmd *argp) @@ -341,8 +349,10 @@ static int sev_launch_start(struct kvm *kvm, struct kvm_sev_cmd *argp) /* Bind ASID to this guest */ ret = sev_bind_asid(kvm, start.handle, error); - if (ret) + if (ret) { + sev_decommission(start.handle); goto e_free_session; + } /* return handle to userspace */ params.handle = start.handle;

3 years, 6 months

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FAILED: patch "[PATCH] KVM: SVM: Call SEV Guest Decommission if ASID binding fails" failed to apply to 4.19-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 934002cd660b035b926438244b4294e647507e13 Mon Sep 17 00:00:00 2001 From: Alper Gun <alpergun(a)google.com> Date: Thu, 10 Jun 2021 17:46:04 +0000 Subject: [PATCH] KVM: SVM: Call SEV Guest Decommission if ASID binding fails Send SEV_CMD_DECOMMISSION command to PSP firmware if ASID binding fails. If a failure happens after a successful LAUNCH_START command, a decommission command should be executed. Otherwise, guest context will be unfreed inside the AMD SP. After the firmware will not have memory to allocate more SEV guest context, LAUNCH_START command will begin to fail with SEV_RET_RESOURCE_LIMIT error. The existing code calls decommission inside sev_unbind_asid, but it is not called if a failure happens before guest activation succeeds. If sev_bind_asid fails, decommission is never called. PSP firmware has a limit for the number of guests. If sev_asid_binding fails many times, PSP firmware will not have resources to create another guest context. Cc: stable(a)vger.kernel.org Fixes: 59414c989220 ("KVM: SVM: Add support for KVM_SEV_LAUNCH_START command") Reported-by: Peter Gonda <pgonda(a)google.com> Signed-off-by: Alper Gun <alpergun(a)google.com> Reviewed-by: Marc Orr <marcorr(a)google.com> Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com> Message-Id: <20210610174604.2554090-1-alpergun(a)google.com> diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index e0ce5da97fc2..8d36f0c73071 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -199,9 +199,19 @@ static void sev_asid_free(struct kvm_sev_info *sev) sev->misc_cg = NULL; } -static void sev_unbind_asid(struct kvm *kvm, unsigned int handle) +static void sev_decommission(unsigned int handle) { struct sev_data_decommission decommission; + + if (!handle) + return; + + decommission.handle = handle; + sev_guest_decommission(&decommission, NULL); +} + +static void sev_unbind_asid(struct kvm *kvm, unsigned int handle) +{ struct sev_data_deactivate deactivate; if (!handle) @@ -214,9 +224,7 @@ static void sev_unbind_asid(struct kvm *kvm, unsigned int handle) sev_guest_deactivate(&deactivate, NULL); up_read(&sev_deactivate_lock); - /* decommission handle */ - decommission.handle = handle; - sev_guest_decommission(&decommission, NULL); + sev_decommission(handle); } static int sev_guest_init(struct kvm *kvm, struct kvm_sev_cmd *argp) @@ -341,8 +349,10 @@ static int sev_launch_start(struct kvm *kvm, struct kvm_sev_cmd *argp) /* Bind ASID to this guest */ ret = sev_bind_asid(kvm, start.handle, error); - if (ret) + if (ret) { + sev_decommission(start.handle); goto e_free_session; + } /* return handle to userspace */ params.handle = start.handle;

3 years, 6 months

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FAILED: patch "[PATCH] KVM: x86/mmu: Calculate and check "full" mmu_role for nested" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 654430efde27248be563df9a88631204b5fe2df2 Mon Sep 17 00:00:00 2001 From: Sean Christopherson <seanjc(a)google.com> Date: Thu, 10 Jun 2021 15:00:26 -0700 Subject: [PATCH] KVM: x86/mmu: Calculate and check "full" mmu_role for nested MMU Calculate and check the full mmu_role when initializing the MMU context for the nested MMU, where "full" means the bits and pieces of the role that aren't handled by kvm_calc_mmu_role_common(). While the nested MMU isn't used for shadow paging, things like the number of levels in the guest's page tables are surprisingly important when walking the guest page tables. Failure to reinitialize the nested MMU context if L2's paging mode changes can result in unexpected and/or missed page faults, and likely other explosions. E.g. if an L1 vCPU is running both a 32-bit PAE L2 and a 64-bit L2, the "common" role calculation will yield the same role for both L2s. If the 64-bit L2 is run after the 32-bit PAE L2, L0 will fail to reinitialize the nested MMU context, ultimately resulting in a bad walk of L2's page tables as the MMU will still have a guest root_level of PT32E_ROOT_LEVEL. WARNING: CPU: 4 PID: 167334 at arch/x86/kvm/vmx/vmx.c:3075 ept_save_pdptrs+0x15/0xe0 [kvm_intel] Modules linked in: kvm_intel] CPU: 4 PID: 167334 Comm: CPU 3/KVM Not tainted 5.13.0-rc1-d849817d5673-reqs #185 Hardware name: ASUS Q87M-E/Q87M-E, BIOS 1102 03/03/2014 RIP: 0010:ept_save_pdptrs+0x15/0xe0 [kvm_intel] Code: <0f> 0b c3 f6 87 d8 02 00f RSP: 0018:ffffbba702dbba00 EFLAGS: 00010202 RAX: 0000000000000011 RBX: 0000000000000002 RCX: ffffffff810a2c08 RDX: ffff91d7bc30acc0 RSI: 0000000000000011 RDI: ffff91d7bc30a600 RBP: ffff91d7bc30a600 R08: 0000000000000010 R09: 0000000000000007 R10: 0000000000000000 R11: 0000000000000000 R12: ffff91d7bc30a600 R13: ffff91d7bc30acc0 R14: ffff91d67c123460 R15: 0000000115d7e005 FS: 00007fe8e9ffb700(0000) GS:ffff91d90fb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000029f15a001 CR4: 00000000001726e0 Call Trace: kvm_pdptr_read+0x3a/0x40 [kvm] paging64_walk_addr_generic+0x327/0x6a0 [kvm] paging64_gva_to_gpa_nested+0x3f/0xb0 [kvm] kvm_fetch_guest_virt+0x4c/0xb0 [kvm] __do_insn_fetch_bytes+0x11a/0x1f0 [kvm] x86_decode_insn+0x787/0x1490 [kvm] x86_decode_emulated_instruction+0x58/0x1e0 [kvm] x86_emulate_instruction+0x122/0x4f0 [kvm] vmx_handle_exit+0x120/0x660 [kvm_intel] kvm_arch_vcpu_ioctl_run+0xe25/0x1cb0 [kvm] kvm_vcpu_ioctl+0x211/0x5a0 [kvm] __x64_sys_ioctl+0x83/0xb0 do_syscall_64+0x40/0xb0 entry_SYSCALL_64_after_hwframe+0x44/0xae Cc: Vitaly Kuznetsov <vkuznets(a)redhat.com> Cc: stable(a)vger.kernel.org Fixes: bf627a928837 ("x86/kvm/mmu: check if MMU reconfiguration is needed in init_kvm_nested_mmu()") Signed-off-by: Sean Christopherson <seanjc(a)google.com> Message-Id: <20210610220026.1364486-1-seanjc(a)google.com> Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com> diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index 0144c40d09c7..8d5876dfc6b7 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -4739,9 +4739,33 @@ static void init_kvm_softmmu(struct kvm_vcpu *vcpu) context->inject_page_fault = kvm_inject_page_fault; } +static union kvm_mmu_role kvm_calc_nested_mmu_role(struct kvm_vcpu *vcpu) +{ + union kvm_mmu_role role = kvm_calc_shadow_root_page_role_common(vcpu, false); + + /* + * Nested MMUs are used only for walking L2's gva->gpa, they never have + * shadow pages of their own and so "direct" has no meaning. Set it + * to "true" to try to detect bogus usage of the nested MMU. + */ + role.base.direct = true; + + if (!is_paging(vcpu)) + role.base.level = 0; + else if (is_long_mode(vcpu)) + role.base.level = is_la57_mode(vcpu) ? PT64_ROOT_5LEVEL : + PT64_ROOT_4LEVEL; + else if (is_pae(vcpu)) + role.base.level = PT32E_ROOT_LEVEL; + else + role.base.level = PT32_ROOT_LEVEL; + + return role; +} + static void init_kvm_nested_mmu(struct kvm_vcpu *vcpu) { - union kvm_mmu_role new_role = kvm_calc_mmu_role_common(vcpu, false); + union kvm_mmu_role new_role = kvm_calc_nested_mmu_role(vcpu); struct kvm_mmu *g_context = &vcpu->arch.nested_mmu; if (new_role.as_u64 == g_context->mmu_role.as_u64)

3 years, 6 months

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FAILED: patch "[PATCH] s390/mcck: fix invalid KVM guest condition check" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 1874cb13d5d7cafa61ce93a760093ebc5485b6ab Mon Sep 17 00:00:00 2001 From: Alexander Gordeev <agordeev(a)linux.ibm.com> Date: Mon, 17 May 2021 08:18:12 +0200 Subject: [PATCH] s390/mcck: fix invalid KVM guest condition check Wrong condition check is used to decide if a machine check hit while in KVM guest. As result of this check the instruction following the SIE critical section might be considered as still in KVM guest and _CIF_MCCK_GUEST CPU flag mistakenly set as result. Fixes: c929500d7a5a ("s390/nmi: s390: New low level handling for machine check happening in guest") Cc: <stable(a)vger.kernel.org> Signed-off-by: Alexander Gordeev <agordeev(a)linux.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger(a)de.ibm.com> Signed-off-by: Heiko Carstens <hca(a)linux.ibm.com> Signed-off-by: Vasily Gorbik <gor(a)linux.ibm.com> diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 3a81e38c95e7..9cc71ca9a88f 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -653,7 +653,7 @@ ENDPROC(stack_overflow) slgr %r9,%r13 lghi %r13,.Lsie_skip - .Lsie_entry clgr %r9,%r13 - jh .Lcleanup_sie_int + jhe .Lcleanup_sie_int oi __LC_CPU_FLAGS+7, _CIF_MCCK_GUEST .Lcleanup_sie_int: BPENTER __SF_SIE_FLAGS(%r15),(_TIF_ISOLATE_BP|_TIF_ISOLATE_BP_GUEST)

3 years, 6 months

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FAILED: patch "[PATCH] s390/mcck: fix invalid KVM guest condition check" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 1874cb13d5d7cafa61ce93a760093ebc5485b6ab Mon Sep 17 00:00:00 2001 From: Alexander Gordeev <agordeev(a)linux.ibm.com> Date: Mon, 17 May 2021 08:18:12 +0200 Subject: [PATCH] s390/mcck: fix invalid KVM guest condition check Wrong condition check is used to decide if a machine check hit while in KVM guest. As result of this check the instruction following the SIE critical section might be considered as still in KVM guest and _CIF_MCCK_GUEST CPU flag mistakenly set as result. Fixes: c929500d7a5a ("s390/nmi: s390: New low level handling for machine check happening in guest") Cc: <stable(a)vger.kernel.org> Signed-off-by: Alexander Gordeev <agordeev(a)linux.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger(a)de.ibm.com> Signed-off-by: Heiko Carstens <hca(a)linux.ibm.com> Signed-off-by: Vasily Gorbik <gor(a)linux.ibm.com> diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 3a81e38c95e7..9cc71ca9a88f 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -653,7 +653,7 @@ ENDPROC(stack_overflow) slgr %r9,%r13 lghi %r13,.Lsie_skip - .Lsie_entry clgr %r9,%r13 - jh .Lcleanup_sie_int + jhe .Lcleanup_sie_int oi __LC_CPU_FLAGS+7, _CIF_MCCK_GUEST .Lcleanup_sie_int: BPENTER __SF_SIE_FLAGS(%r15),(_TIF_ISOLATE_BP|_TIF_ISOLATE_BP_GUEST)

3 years, 6 months

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FAILED: patch "[PATCH] s390/mcck: fix invalid KVM guest condition check" failed to apply to 4.19-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 1874cb13d5d7cafa61ce93a760093ebc5485b6ab Mon Sep 17 00:00:00 2001 From: Alexander Gordeev <agordeev(a)linux.ibm.com> Date: Mon, 17 May 2021 08:18:12 +0200 Subject: [PATCH] s390/mcck: fix invalid KVM guest condition check Wrong condition check is used to decide if a machine check hit while in KVM guest. As result of this check the instruction following the SIE critical section might be considered as still in KVM guest and _CIF_MCCK_GUEST CPU flag mistakenly set as result. Fixes: c929500d7a5a ("s390/nmi: s390: New low level handling for machine check happening in guest") Cc: <stable(a)vger.kernel.org> Signed-off-by: Alexander Gordeev <agordeev(a)linux.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger(a)de.ibm.com> Signed-off-by: Heiko Carstens <hca(a)linux.ibm.com> Signed-off-by: Vasily Gorbik <gor(a)linux.ibm.com> diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 3a81e38c95e7..9cc71ca9a88f 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -653,7 +653,7 @@ ENDPROC(stack_overflow) slgr %r9,%r13 lghi %r13,.Lsie_skip - .Lsie_entry clgr %r9,%r13 - jh .Lcleanup_sie_int + jhe .Lcleanup_sie_int oi __LC_CPU_FLAGS+7, _CIF_MCCK_GUEST .Lcleanup_sie_int: BPENTER __SF_SIE_FLAGS(%r15),(_TIF_ISOLATE_BP|_TIF_ISOLATE_BP_GUEST)

3 years, 6 months

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FAILED: patch "[PATCH] s390/mcck: fix invalid KVM guest condition check" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 1874cb13d5d7cafa61ce93a760093ebc5485b6ab Mon Sep 17 00:00:00 2001 From: Alexander Gordeev <agordeev(a)linux.ibm.com> Date: Mon, 17 May 2021 08:18:12 +0200 Subject: [PATCH] s390/mcck: fix invalid KVM guest condition check Wrong condition check is used to decide if a machine check hit while in KVM guest. As result of this check the instruction following the SIE critical section might be considered as still in KVM guest and _CIF_MCCK_GUEST CPU flag mistakenly set as result. Fixes: c929500d7a5a ("s390/nmi: s390: New low level handling for machine check happening in guest") Cc: <stable(a)vger.kernel.org> Signed-off-by: Alexander Gordeev <agordeev(a)linux.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger(a)de.ibm.com> Signed-off-by: Heiko Carstens <hca(a)linux.ibm.com> Signed-off-by: Vasily Gorbik <gor(a)linux.ibm.com> diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 3a81e38c95e7..9cc71ca9a88f 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -653,7 +653,7 @@ ENDPROC(stack_overflow) slgr %r9,%r13 lghi %r13,.Lsie_skip - .Lsie_entry clgr %r9,%r13 - jh .Lcleanup_sie_int + jhe .Lcleanup_sie_int oi __LC_CPU_FLAGS+7, _CIF_MCCK_GUEST .Lcleanup_sie_int: BPENTER __SF_SIE_FLAGS(%r15),(_TIF_ISOLATE_BP|_TIF_ISOLATE_BP_GUEST)

3 years, 6 months

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FAILED: patch "[PATCH] PCI: Mark AMD Navi14 GPU ATS as broken" failed to apply to e8946a53e2a698c148b3b3ed732f43c7747fbeb6-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the e8946a53e2a698c148b3b3ed732f43c7747fbeb6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From e8946a53e2a698c148b3b3ed732f43c7747fbeb6 Mon Sep 17 00:00:00 2001 From: Evan Quan <evan.quan(a)amd.com> Date: Wed, 2 Jun 2021 10:12:55 +0800 Subject: [PATCH] PCI: Mark AMD Navi14 GPU ATS as broken MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Observed unexpected GPU hang during runpm stress test on 0x7341 rev 0x00. Further debugging shows broken ATS is related. Disable ATS on this part. Similar issues on other devices: a2da5d8cc0b0 ("PCI: Mark AMD Raven iGPU ATS as broken in some platforms") 45beb31d3afb ("PCI: Mark AMD Navi10 GPU rev 0x00 ATS as broken") 5e89cd303e3a ("PCI: Mark AMD Navi14 GPU rev 0xc5 ATS as broken") Suggested-by: Alex Deucher <alexander.deucher(a)amd.com> Link: https://lore.kernel.org/r/20210602021255.939090-1-evan.quan@amd.com Signed-off-by: Evan Quan <evan.quan(a)amd.com> Signed-off-by: Bjorn Helgaas <bhelgaas(a)google.com> Reviewed-by: Krzysztof Wilczyński <kw(a)linux.com> Cc: stable(a)vger.kernel.org diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index dda0b1018162..877ce61619ca 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -5241,7 +5241,8 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0422, quirk_no_ext_tags); static void quirk_amd_harvest_no_ats(struct pci_dev *pdev) { if ((pdev->device == 0x7312 && pdev->revision != 0x00) || - (pdev->device == 0x7340 && pdev->revision != 0xc5)) + (pdev->device == 0x7340 && pdev->revision != 0xc5) || + (pdev->device == 0x7341 && pdev->revision != 0x00)) return; if (pdev->device == 0x15d8) { @@ -5268,6 +5269,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_amd_harvest_no_ats); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, quirk_amd_harvest_no_ats); /* AMD Navi14 dGPU */ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, quirk_amd_harvest_no_ats); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7341, quirk_amd_harvest_no_ats); /* AMD Raven platform iGPU */ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, quirk_amd_harvest_no_ats); #endif /* CONFIG_PCI_ATS */

3 years, 6 months

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FAILED: patch "[PATCH] PCI: Mark AMD Navi14 GPU ATS as broken" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From e8946a53e2a698c148b3b3ed732f43c7747fbeb6 Mon Sep 17 00:00:00 2001 From: Evan Quan <evan.quan(a)amd.com> Date: Wed, 2 Jun 2021 10:12:55 +0800 Subject: [PATCH] PCI: Mark AMD Navi14 GPU ATS as broken MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Observed unexpected GPU hang during runpm stress test on 0x7341 rev 0x00. Further debugging shows broken ATS is related. Disable ATS on this part. Similar issues on other devices: a2da5d8cc0b0 ("PCI: Mark AMD Raven iGPU ATS as broken in some platforms") 45beb31d3afb ("PCI: Mark AMD Navi10 GPU rev 0x00 ATS as broken") 5e89cd303e3a ("PCI: Mark AMD Navi14 GPU rev 0xc5 ATS as broken") Suggested-by: Alex Deucher <alexander.deucher(a)amd.com> Link: https://lore.kernel.org/r/20210602021255.939090-1-evan.quan@amd.com Signed-off-by: Evan Quan <evan.quan(a)amd.com> Signed-off-by: Bjorn Helgaas <bhelgaas(a)google.com> Reviewed-by: Krzysztof Wilczyński <kw(a)linux.com> Cc: stable(a)vger.kernel.org diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index dda0b1018162..877ce61619ca 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -5241,7 +5241,8 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0422, quirk_no_ext_tags); static void quirk_amd_harvest_no_ats(struct pci_dev *pdev) { if ((pdev->device == 0x7312 && pdev->revision != 0x00) || - (pdev->device == 0x7340 && pdev->revision != 0xc5)) + (pdev->device == 0x7340 && pdev->revision != 0xc5) || + (pdev->device == 0x7341 && pdev->revision != 0x00)) return; if (pdev->device == 0x15d8) { @@ -5268,6 +5269,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_amd_harvest_no_ats); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, quirk_amd_harvest_no_ats); /* AMD Navi14 dGPU */ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, quirk_amd_harvest_no_ats); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7341, quirk_amd_harvest_no_ats); /* AMD Raven platform iGPU */ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, quirk_amd_harvest_no_ats); #endif /* CONFIG_PCI_ATS */

3 years, 6 months

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FAILED: patch "[PATCH] PCI: Mark AMD Navi14 GPU ATS as broken" failed to apply to 4.19-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From e8946a53e2a698c148b3b3ed732f43c7747fbeb6 Mon Sep 17 00:00:00 2001 From: Evan Quan <evan.quan(a)amd.com> Date: Wed, 2 Jun 2021 10:12:55 +0800 Subject: [PATCH] PCI: Mark AMD Navi14 GPU ATS as broken MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Observed unexpected GPU hang during runpm stress test on 0x7341 rev 0x00. Further debugging shows broken ATS is related. Disable ATS on this part. Similar issues on other devices: a2da5d8cc0b0 ("PCI: Mark AMD Raven iGPU ATS as broken in some platforms") 45beb31d3afb ("PCI: Mark AMD Navi10 GPU rev 0x00 ATS as broken") 5e89cd303e3a ("PCI: Mark AMD Navi14 GPU rev 0xc5 ATS as broken") Suggested-by: Alex Deucher <alexander.deucher(a)amd.com> Link: https://lore.kernel.org/r/20210602021255.939090-1-evan.quan@amd.com Signed-off-by: Evan Quan <evan.quan(a)amd.com> Signed-off-by: Bjorn Helgaas <bhelgaas(a)google.com> Reviewed-by: Krzysztof Wilczyński <kw(a)linux.com> Cc: stable(a)vger.kernel.org diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index dda0b1018162..877ce61619ca 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -5241,7 +5241,8 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0422, quirk_no_ext_tags); static void quirk_amd_harvest_no_ats(struct pci_dev *pdev) { if ((pdev->device == 0x7312 && pdev->revision != 0x00) || - (pdev->device == 0x7340 && pdev->revision != 0xc5)) + (pdev->device == 0x7340 && pdev->revision != 0xc5) || + (pdev->device == 0x7341 && pdev->revision != 0x00)) return; if (pdev->device == 0x15d8) { @@ -5268,6 +5269,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_amd_harvest_no_ats); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, quirk_amd_harvest_no_ats); /* AMD Navi14 dGPU */ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, quirk_amd_harvest_no_ats); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7341, quirk_amd_harvest_no_ats); /* AMD Raven platform iGPU */ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, quirk_amd_harvest_no_ats); #endif /* CONFIG_PCI_ATS */

3 years, 6 months

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