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apic, i386/tcg: add x2apic transitions

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This commit adds support for x2APIC transitions when writing to
MSR_IA32_APICBASE register and finally adds CPUID_EXT_X2APIC to
TCG_EXT_FEATURES.

The set_base in APICCommonClass now returns an integer to indicate error in
execution. apic_set_base return -1 on invalid APIC state transition,
accelerator can use this to raise appropriate exception.

Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
Message-Id: <20240111154404.5333-4-minhquangbui99@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Bui Quang Minh 2024-01-11 22:44:00 +07:00 • committed by Michael S. Tsirkin
parent b5ee0468e9
commit 774204cf98
10 changed files with 96 additions and 19 deletions
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2
include/hw/i386/apic.h
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@ -8,7 +8,7 @@ int apic_accept_pic_intr(DeviceState *s);
void apic_deliver_pic_intr(DeviceState *s, int level);
void apic_deliver_nmi(DeviceState *d);
int apic_get_interrupt(DeviceState *s);
void cpu_set_apic_base(DeviceState *s, uint64_t val);
int cpu_set_apic_base(DeviceState *s, uint64_t val);
uint64_t cpu_get_apic_base(DeviceState *s);
void cpu_set_apic_tpr(DeviceState *s, uint8_t val);
uint8_t cpu_get_apic_tpr(DeviceState *s);