diff options
Diffstat (limited to 'meta/recipes-kernel/lttng/lttng-modules/0008-fix-KVM-x86-mmu-Return-unique-RET_PF_-values-if-the-.patch')
| -rw-r--r-- | meta/recipes-kernel/lttng/lttng-modules/0008-fix-KVM-x86-mmu-Return-unique-RET_PF_-values-if-the-.patch | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/meta/recipes-kernel/lttng/lttng-modules/0008-fix-KVM-x86-mmu-Return-unique-RET_PF_-values-if-the-.patch b/meta/recipes-kernel/lttng/lttng-modules/0008-fix-KVM-x86-mmu-Return-unique-RET_PF_-values-if-the-.patch deleted file mode 100644 index a71bb728f0..0000000000 --- a/meta/recipes-kernel/lttng/lttng-modules/0008-fix-KVM-x86-mmu-Return-unique-RET_PF_-values-if-the-.patch +++ /dev/null @@ -1,71 +0,0 @@ -From 14bbccffa579f4d66e2900843d6afae1294ce7c8 Mon Sep 17 00:00:00 2001 -From: Michael Jeanson <mjeanson@efficios.com> -Date: Mon, 26 Oct 2020 17:07:13 -0400 -Subject: [PATCH 08/16] fix: KVM: x86/mmu: Return unique RET_PF_* values if the - fault was fixed (v5.10) - -See upstream commit : - - commit c4371c2a682e0da1ed2cd7e3c5496f055d873554 - Author: Sean Christopherson <sean.j.christopherson@intel.com> - Date: Wed Sep 23 15:04:24 2020 -0700 - - KVM: x86/mmu: Return unique RET_PF_* values if the fault was fixed - - Introduce RET_PF_FIXED and RET_PF_SPURIOUS to provide unique return - values instead of overloading RET_PF_RETRY. In the short term, the - unique values add clarity to the code and RET_PF_SPURIOUS will be used - by set_spte() to avoid unnecessary work for spurious faults. - - In the long term, TDX will use RET_PF_FIXED to deterministically map - memory during pre-boot. The page fault flow may bail early for benign - reasons, e.g. if the mmu_notifier fires for an unrelated address. With - only RET_PF_RETRY, it's impossible for the caller to distinguish between - "cool, page is mapped" and "darn, need to try again", and thus cannot - handle benign cases like the mmu_notifier retry. - -Upstream-Status: Backport - -Signed-off-by: Michael Jeanson <mjeanson@efficios.com> -Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> -Change-Id: Ie0855c78852b45f588e131fe2463e15aae1bc023 ---- - .../lttng-module/arch/x86/kvm/mmutrace.h | 22 ++++++++++++++++++- - 1 file changed, 21 insertions(+), 1 deletion(-) - -diff --git a/instrumentation/events/lttng-module/arch/x86/kvm/mmutrace.h b/instrumentation/events/lttng-module/arch/x86/kvm/mmutrace.h -index 86717835..cdf0609f 100644 ---- a/instrumentation/events/lttng-module/arch/x86/kvm/mmutrace.h -+++ b/instrumentation/events/lttng-module/arch/x86/kvm/mmutrace.h -@@ -233,7 +233,27 @@ LTTNG_TRACEPOINT_EVENT_MAP( - ) - ) - --#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0) || \ -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,10,0)) -+LTTNG_TRACEPOINT_EVENT_MAP( -+ fast_page_fault, -+ -+ kvm_mmu_fast_page_fault, -+ -+ TP_PROTO(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa, u32 error_code, -+ u64 *sptep, u64 old_spte, int ret), -+ TP_ARGS(vcpu, cr2_or_gpa, error_code, sptep, old_spte, ret), -+ -+ TP_FIELDS( -+ ctf_integer(int, vcpu_id, vcpu->vcpu_id) -+ ctf_integer(gpa_t, cr2_or_gpa, cr2_or_gpa) -+ ctf_integer(u32, error_code, error_code) -+ ctf_integer_hex(u64 *, sptep, sptep) -+ ctf_integer(u64, old_spte, old_spte) -+ ctf_integer(u64, new_spte, *sptep) -+ ctf_integer(int, ret, ret) -+ ) -+) -+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0) || \ - LTTNG_KERNEL_RANGE(4,19,103, 4,20,0) || \ - LTTNG_KERNEL_RANGE(5,4,19, 5,5,0) || \ - LTTNG_KERNEL_RANGE(5,5,3, 5,6,0) || \ --- -2.25.1 - |