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TDX requires vMMIO region to be shared. For KVM, MMIO region is the region which kvm memslot isn't assigned to (except in-kernel emulation). qemu has the memory region for vMMIO at each device level. While OVMF issues MapGPA(to-shared) conservatively on 32bit PCI MMIO region, qemu doesn't find corresponding vMMIO region because it's before PCI device allocation and memory_region_find() finds the device region, not PCI bus region. It's safe to ignore MapGPA(to-shared) because when guest accesses those region they use GPA with shared bit set for vMMIO. Ignore memory conversion request of non-assigned region to shared and return success. Otherwise OVMF is confused and panics there. Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com> Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com> Message-ID: <20240229063726.610065-35-xiaoyao.li@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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| .. | ||
| kvm-accel-ops.c | ||
| kvm-all.c | ||
| kvm-cpus.h | ||
| meson.build | ||
| trace-events | ||
| trace.h | ||