qemu-cr16/accel
Paolo Bonzini b2f73a0784 sev/i386: Allow AP booting under SEV-ES
When SEV-ES is enabled, it is not possible modify the guests register
state after it has been initially created, encrypted and measured.

Normally, an INIT-SIPI-SIPI request is used to boot the AP. However, the
hypervisor cannot emulate this because it cannot update the AP register
state. For the very first boot by an AP, the reset vector CS segment
value and the EIP value must be programmed before the register has been
encrypted and measured. Search the guest firmware for the guest for a
specific GUID that tells Qemu the value of the reset vector to use.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Message-Id: <22db2bfb4d6551aed661a9ae95b4fdbef613ca21.1611682609.git.thomas.lendacky@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-16 17:15:39 +01:00
..
hvf hvf: Add hypervisor entitlement to output binaries 2021-01-29 10:47:28 +00:00
kvm sev/i386: Allow AP booting under SEV-ES 2021-02-16 17:15:39 +01:00
qtest accel: replace struct CpusAccel with AccelOpsClass 2021-02-05 10:24:15 -10:00
stubs sev: Remove false abstraction of flash encryption 2021-02-08 16:57:38 +11:00
tcg accel/tcg: Add URL of clang bug to comment about our workaround 2021-02-11 11:50:14 +00:00
xen accel: replace struct CpusAccel with AccelOpsClass 2021-02-05 10:24:15 -10:00
accel-common.c accel: introduce AccelCPUClass extending CPUClass 2021-02-05 10:24:15 -10:00
accel-softmmu.c accel: replace struct CpusAccel with AccelOpsClass 2021-02-05 10:24:15 -10:00
accel-softmmu.h accel: replace struct CpusAccel with AccelOpsClass 2021-02-05 10:24:15 -10:00
accel-user.c accel: extend AccelState and AccelClass to user-mode 2021-02-05 10:24:15 -10:00
dummy-cpus.c accel: move qtest CpusAccel functions to a common location 2020-10-24 07:23:19 +02:00
Kconfig meson: cleanup Kconfig.host handling 2021-01-02 21:03:36 +01:00
meson.build accel: extend AccelState and AccelClass to user-mode 2021-02-05 10:24:15 -10:00