lkml.org 
[lkml]   [2022]   [Jun]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v7 34/39] KVM: selftests: nSVM: Allocate Hyper-V partition assist and VP assist pages
Date
In preparation to testing Hyper-V L2 TLB flush hypercalls, allocate VP
assist and Partition assist pages and link them to 'struct svm_test_data'.

Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
tools/testing/selftests/kvm/include/x86_64/svm_util.h | 10 ++++++++++
tools/testing/selftests/kvm/lib/x86_64/svm.c | 10 ++++++++++
2 files changed, 20 insertions(+)

diff --git a/tools/testing/selftests/kvm/include/x86_64/svm_util.h b/tools/testing/selftests/kvm/include/x86_64/svm_util.h
index 136ba6a5d027..3922e4842c68 100644
--- a/tools/testing/selftests/kvm/include/x86_64/svm_util.h
+++ b/tools/testing/selftests/kvm/include/x86_64/svm_util.h
@@ -36,6 +36,16 @@ struct svm_test_data {
void *msr; /* gva */
void *msr_hva;
uint64_t msr_gpa;
+
+ /* Hyper-V VP assist page */
+ void *vp_assist; /* gva */
+ void *vp_assist_hva;
+ uint64_t vp_assist_gpa;
+
+ /* Hyper-V Partition assist page */
+ void *partition_assist; /* gva */
+ void *partition_assist_hva;
+ uint64_t partition_assist_gpa;
};

#define stgi() \
diff --git a/tools/testing/selftests/kvm/lib/x86_64/svm.c b/tools/testing/selftests/kvm/lib/x86_64/svm.c
index 37e9c0a923e0..98a47bf4cb2f 100644
--- a/tools/testing/selftests/kvm/lib/x86_64/svm.c
+++ b/tools/testing/selftests/kvm/lib/x86_64/svm.c
@@ -47,6 +47,16 @@ vcpu_alloc_svm(struct kvm_vm *vm, vm_vaddr_t *p_svm_gva)
svm->msr_gpa = addr_gva2gpa(vm, (uintptr_t)svm->msr);
memset(svm->msr_hva, 0, getpagesize());

+ svm->vp_assist = (void *)vm_vaddr_alloc_page(vm);
+ svm->vp_assist_hva = addr_gva2hva(vm, (uintptr_t)svm->vp_assist);
+ svm->vp_assist_gpa = addr_gva2gpa(vm, (uintptr_t)svm->vp_assist);
+ memset(svm->vp_assist_hva, 0, getpagesize());
+
+ svm->partition_assist = (void *)vm_vaddr_alloc_page(vm);
+ svm->partition_assist_hva = addr_gva2hva(vm, (uintptr_t)svm->partition_assist);
+ svm->partition_assist_gpa = addr_gva2gpa(vm, (uintptr_t)svm->partition_assist);
+ memset(svm->partition_assist_hva, 0, getpagesize());
+
*p_svm_gva = svm_gva;
return svm;
}
--
2.35.3
\
 
 \ /
  Last update: 2022-06-13 20:03    [W:0.143 / U:0.564 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site