This patch series is based on [RFC,v7,00/64] Add AMD Secure Nested Paging (SEV-SNP) Hypervisor Support The GHCB specification recommends that SNP guest requests should be rate limited. This 2 patch series adds such rate limiting with a 2 burst, 2 second interval per VM as the default values for two new kvm-amd module parameters: guest_request_throttle_s guest_request_throttle_burst This patch series cooperates with the guest series, Add throttling detection to sev-guest in order for guests to retry when throttled, rather than disable the VMPCK and fail to complete their request. Changes since v2: * Rebased on v7, changed "we" wording to passive voice. Changes since v1: * Added missing Ccs to patches. Dionna Glaze (2): kvm: sev: Add SEV-SNP guest request throttling kvm: sev: If ccp is busy, report throttled to guest arch/x86/include/asm/sev-common.h | 1 + arch/x86/kvm/svm/sev.c | 47 +++++++++++++++++++++++++++++-- arch/x86/kvm/svm/svm.h | 3 ++ include/uapi/linux/in.h | 1 + 4 files changed, 50 insertions(+), 2 deletions(-) -- 2.39.0.246.g2a6d74b583-goog
