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kvm/tdx: Don't complain when converting vMMIO region to shared

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Because vMMIO region needs to be shared region, guest TD may explicitly
convert such region from private to shared.  Don't complain such
conversion.

Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-ID: <20240229063726.610065-34-xiaoyao.li@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Isaku Yamahata 2024-02-29 01:36:54 -05:00 committed by Paolo Bonzini
parent c15e568407
commit c5d9425ef4
1 changed files with 16 additions and 3 deletions
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19
accel/kvm/kvm-all.c
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@ -2927,9 +2927,22 @@ int kvm_convert_memory(hwaddr start, hwaddr size, bool to_private)
}
if (!memory_region_has_guest_memfd(mr)) {
error_report("Converting non guest_memfd backed memory region "
"(0x%"HWADDR_PRIx" ,+ 0x%"HWADDR_PRIx") to %s",
start, size, to_private ? "private" : "shared");
/*
* Because vMMIO region must be shared, guest TD may convert vMMIO
* region to shared explicitly. Don't complain such case. See
* memory_region_type() for checking if the region is MMIO region.
*/
if (!to_private &&
!memory_region_is_ram(mr) &&
!memory_region_is_ram_device(mr) &&
!memory_region_is_rom(mr) &&
!memory_region_is_romd(mr)) {
ret = 0;
} else {
error_report("Convert non guest_memfd backed memory region "
"(0x%"HWADDR_PRIx" ,+ 0x%"HWADDR_PRIx") to %s",
start, size, to_private ? "private" : "shared");
}
goto out_unref;
}