This is to use another AMD SEV-ES hardware assisted register swap, more detail in 2/3. The patches are fairly independend but required in this order. This is based on sha1 ef4d3ea40565 and requires something like this: https://lkml.org/lkml/2022/11/29/1229 This patchset is pushed out at https://github.com/aik/linux/commits/debugswap Please comment. Thanks. Alexey Kardashevskiy (3): x86/amd/dr_addr_mask: Cache values in percpu variables KVM: SEV: Enable DebugSwap x86/sev: Do not handle #VC for DR7 read/write arch/x86/include/asm/debugreg.h | 1 + arch/x86/include/asm/svm.h | 1 + arch/x86/kvm/svm/svm.h | 18 ++++++++--- arch/x86/kernel/cpu/amd.c | 32 ++++++++++++++++++++ arch/x86/kernel/sev.c | 6 ++++ arch/x86/kvm/svm/sev.c | 22 +++++++++++++- arch/x86/kvm/svm/svm.c | 6 ++-- 7 files changed, 78 insertions(+), 8 deletions(-) -- 2.38.1
