From: David Stevens <stevensd@xxxxxxxxxxxx> This series replaces the usage of kvm_vcpu_map in vmx with gfn_to_pfn_cache. See [1] for details on why kvm_vcpu_map is broken. The presence of kvm_vcpu_map blocks another series I would like to try to merge [2]. Although I'm not familiar with the internals of vmx, I've gone ahead and taken a stab at this cleanup. I've done some manual testing with nested VMs, and KVM selftests pass, but thorough feedback would be appreciated. Once this cleanup is done, I'll take a look at removing kvm_vcpu_map from svm. [1] https://lore.kernel.org/all/20211115165030.7422-8-dwmw2@xxxxxxxxxxxxx/ [2] https://lore.kernel.org/all/Ydhq5aHW+JFo15UF@xxxxxxxxxx/ David Stevens (3): KVM: Support sharing gpc locks KVM: use gfn=>pfn cache in nested_get_vmcs12_pages KVM: use gfn=>pfn cache for evmcs arch/x86/kvm/vmx/hyperv.c | 41 ++++- arch/x86/kvm/vmx/hyperv.h | 2 + arch/x86/kvm/vmx/nested.c | 329 +++++++++++++++++++++++++++++--------- arch/x86/kvm/vmx/vmx.c | 48 +++++- arch/x86/kvm/vmx/vmx.h | 14 +- arch/x86/kvm/x86.c | 8 +- arch/x86/kvm/xen.c | 58 +++---- include/linux/kvm_host.h | 12 ++ include/linux/kvm_types.h | 3 +- virt/kvm/pfncache.c | 37 +++-- 10 files changed, 418 insertions(+), 134 deletions(-) -- 2.39.1.456.gfc5497dd1b-goog
