qemu/accel
Tom Dohrmann 8c3f3c8708 accel/kvm: check for KVM_CAP_READONLY_MEM on VM
KVM_CAP_READONLY_MEM used to be a global capability, but with the
introduction of AMD SEV-SNP confidential VMs, this extension is not
always available on all VM types [1,2].

Query the extension on the VM level instead of on the KVM level.

[1] https://patchwork.kernel.org/project/kvm/patch/20240809190319.1710470-2-seanjc@google.com/
[2] https://patchwork.kernel.org/project/kvm/patch/20240902144219.3716974-1-erbse.13@gmx.de/

Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Tom Dohrmann <erbse.13@gmx.de>
Link: https://lore.kernel.org/r/20240903062953.3926498-1-erbse.13@gmx.de
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 64e0e63ea1)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2024-11-08 13:02:57 +03:00
..
hvf accel: Do not set CPUState::can_do_io in non-TCG accels 2024-01-19 12:28:59 +01:00
kvm accel/kvm: check for KVM_CAP_READONLY_MEM on VM 2024-11-08 13:02:57 +03:00
qtest meson: Replace CONFIG_SOFTMMU -> CONFIG_SYSTEM_ONLY 2023-06-20 10:01:30 +02:00
stubs migration: prevent migration when VM has poisoned memory 2024-02-05 14:41:58 +08:00
tcg Revert "replay: stop us hanging in rr_wait_io_event" 2024-08-28 08:37:29 +03:00
xen hw/xen: Extract 'xen_igd.h' from 'xen_pt.h' 2024-03-09 18:51:45 +01:00
accel-blocker.c system/cpus: rename qemu_mutex_lock_iothread() to bql_lock() 2024-01-08 10:45:43 -05:00
accel-system.c accel: Rename accel_init_ops_interfaces() to include 'system' 2024-01-19 12:28:59 +01:00
accel-system.h accel: Rename accel_init_ops_interfaces() to include 'system' 2024-01-19 12:28:59 +01:00
accel-target.c accel: Rename accel_init_ops_interfaces() to include 'system' 2024-01-19 12:28:59 +01:00
accel-user.c accel: extend AccelState and AccelClass to user-mode 2021-02-05 10:24:15 -10:00
dummy-cpus.c accel: Do not set CPUState::can_do_io in non-TCG accels 2024-01-19 12:28:59 +01:00
Kconfig i386: xen: fix compilation --without-default-devices 2024-02-16 13:56:09 +01:00
meson.build accel: Rename accel_softmmu* -> accel_system* 2023-10-07 19:02:57 +02:00