diff options
Diffstat (limited to 'poky/meta/recipes-kernel/lttng/lttng-modules/0007-fix-kvm-x86-mmu-Add-TDP-MMU-PF-handler-v5.10.patch')
| -rw-r--r-- | poky/meta/recipes-kernel/lttng/lttng-modules/0007-fix-kvm-x86-mmu-Add-TDP-MMU-PF-handler-v5.10.patch | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/poky/meta/recipes-kernel/lttng/lttng-modules/0007-fix-kvm-x86-mmu-Add-TDP-MMU-PF-handler-v5.10.patch b/poky/meta/recipes-kernel/lttng/lttng-modules/0007-fix-kvm-x86-mmu-Add-TDP-MMU-PF-handler-v5.10.patch new file mode 100644 index 0000000000..d78a8c25c7 --- /dev/null +++ b/poky/meta/recipes-kernel/lttng/lttng-modules/0007-fix-kvm-x86-mmu-Add-TDP-MMU-PF-handler-v5.10.patch @@ -0,0 +1,82 @@ +From 2f421c43c60b2c9d3ed63c1a363320e98a536a35 Mon Sep 17 00:00:00 2001 +From: Michael Jeanson <mjeanson@efficios.com> +Date: Mon, 26 Oct 2020 14:28:35 -0400 +Subject: [PATCH 07/16] fix: kvm: x86/mmu: Add TDP MMU PF handler (v5.10) + +See upstream commit : + + commit bb18842e21111a979e2e0e1c5d85c09646f18d51 + Author: Ben Gardon <bgardon@google.com> + Date: Wed Oct 14 11:26:50 2020 -0700 + + kvm: x86/mmu: Add TDP MMU PF handler + + Add functions to handle page faults in the TDP MMU. These page faults + are currently handled in much the same way as the x86 shadow paging + based MMU, however the ordering of some operations is slightly + different. Future patches will add eager NX splitting, a fast page fault + handler, and parallel page faults. + + Tested by running kvm-unit-tests and KVM selftests on an Intel Haswell + machine. This series introduced no new failures. + +Upstream-Status: Backport + +Signed-off-by: Michael Jeanson <mjeanson@efficios.com> +Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> +Change-Id: Ie56959cb6c77913d2f1188b0ca15da9114623a4e +--- + .../lttng-module/arch/x86/kvm/mmutrace.h | 20 ++++++++++++++++++- + probes/lttng-probe-kvm-x86-mmu.c | 5 +++++ + 2 files changed, 24 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 e5470400..86717835 100644 +--- a/instrumentation/events/lttng-module/arch/x86/kvm/mmutrace.h ++++ b/instrumentation/events/lttng-module/arch/x86/kvm/mmutrace.h +@@ -163,7 +163,25 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE(kvm_mmu_page_class, kvm_mmu_prepare_zap_page, + TP_ARGS(sp) + ) + +-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)) ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,10,0)) ++ ++LTTNG_TRACEPOINT_EVENT_MAP( ++ mark_mmio_spte, ++ ++ kvm_mmu_mark_mmio_spte, ++ ++ TP_PROTO(u64 *sptep, gfn_t gfn, u64 spte), ++ TP_ARGS(sptep, gfn, spte), ++ ++ TP_FIELDS( ++ ctf_integer_hex(void *, sptep, sptep) ++ ctf_integer(gfn_t, gfn, gfn) ++ ctf_integer(unsigned, access, spte & ACC_ALL) ++ ctf_integer(unsigned int, gen, get_mmio_spte_generation(spte)) ++ ) ++) ++ ++#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)) + + LTTNG_TRACEPOINT_EVENT_MAP( + mark_mmio_spte, +diff --git a/probes/lttng-probe-kvm-x86-mmu.c b/probes/lttng-probe-kvm-x86-mmu.c +index 8f981865..5043c776 100644 +--- a/probes/lttng-probe-kvm-x86-mmu.c ++++ b/probes/lttng-probe-kvm-x86-mmu.c +@@ -31,6 +31,11 @@ + #include <../../arch/x86/kvm/mmutrace.h> + #endif + ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,10,0)) ++#include <../arch/x86/kvm/mmu.h> ++#include <../arch/x86/kvm/mmu/spte.h> ++#endif ++ + #undef TRACE_INCLUDE_PATH + #undef TRACE_INCLUDE_FILE + +-- +2.25.1 + |