Paolo Bonzini c8cc43c1ea selftests: KVM: avoid failures due to reserved HyperTransport region ... AMD proceessors define an address range that is reserved by HyperTransport and causes a failure if used for guest physical addresses. Avoid selftests failures by reserving those guest physical addresses; the rules are: - On parts with <40 bits, its fully hidden from software. - Before Fam17h, it was always 12G just below 1T, even if there was more RAM above this location. In this case we just not use any RAM above 1T. - On Fam17h and later, it is variable based on SME, and is either just below 2^48 (no encryption) or 2^43 (encryption). Fixes: ef4c9f4f65 ("KVM: selftests: Fix 32-bit truncation of vm_get_max_gfn()") Cc: stable@vger.kernel.org Cc: David Matlack <dmatlack@google.com> Reported-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210805105423.412878-1-pbonzini@redhat.com> Reviewed-by: Sean Christopherson <seanjc@google.com> Tested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2021-12-10 07:42:20 -05:00
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apic.c	KVM: selftests: Introduce x2APIC register manipulation functions	2021-06-17 13:09:32 -04:00
handlers.S	selftests: kvm: remove reassignment of non-absolute variables	2021-05-07 06:06:13 -04:00
processor.c	selftests: KVM: avoid failures due to reserved HyperTransport region	2021-12-10 07:42:20 -05:00
svm.c	selftest: KVM: Add open sev dev helper	2021-11-11 10:35:27 -05:00
ucall.c	selftests: kvm: Clear uc so UCALL_NONE is being properly reported	2020-11-08 06:02:14 -05:00
vmx.c	KVM: selftests: Add wrapper to allocate page table page	2021-06-24 11:47:49 -04:00