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apic: add support for x2APIC mode

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This commit extends the APIC ID to 32-bit long and remove the 255 max APIC
ID limit in userspace APIC. The array that manages local APICs is now
dynamically allocated based on the max APIC ID of created x86 machine.
Also, new x2APIC IPI destination determination scheme, self IPI and x2APIC
mode register access are supported.

Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
Message-Id: <20240111154404.5333-3-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 22:43:59 +07:00 • committed by Michael S. Tsirkin
parent b2101358e5
commit b5ee0468e9
7 changed files with 258 additions and 74 deletions
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7
include/hw/i386/apic_internal.h
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@ -46,8 +46,10 @@
#define APIC_DM_EXTINT 7
/* APIC destination mode */
#define APIC_DESTMODE_FLAT 0xf
#define APIC_DESTMODE_CLUSTER 1
#define APIC_DESTMODE_PHYSICAL 0
#define APIC_DESTMODE_LOGICAL 1
#define APIC_DESTMODE_LOGICAL_FLAT 0xf
#define APIC_DESTMODE_LOGICAL_CLUSTER 0
#define APIC_TRIGGER_EDGE 0
#define APIC_TRIGGER_LEVEL 1
@ -187,6 +189,7 @@ struct APICCommonState {
DeviceState *vapic;
hwaddr vapic_paddr; /* note: persistence via kvmvapic */
bool legacy_instance_id;
uint32_t extended_log_dest;
};
typedef struct VAPICState {