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multi-process: Forward PCI config space acceses to the remote process

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The Proxy Object sends the PCI config space accesses as messages
to the remote process over the communication channel

Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John G Johnson <john.g.johnson@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: d3c94f4618813234655356c60e6f0d0362ff42d6.1611938319.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Elena Ufimtseva 2021-01-29 11:46:16 -05:00 • committed by Stefan Hajnoczi
parent e7b2c9eaa2
commit 11ab872588
4 changed files with 132 additions and 1 deletions
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10
include/hw/remote/mpqemu-link.h
View file

@ -34,6 +34,9 @@
*/
typedef enum {
MPQEMU_CMD_SYNC_SYSMEM,
MPQEMU_CMD_RET,
MPQEMU_CMD_PCI_CFGWRITE,
MPQEMU_CMD_PCI_CFGREAD,
MPQEMU_CMD_MAX,
} MPQemuCmd;
@ -43,6 +46,12 @@ typedef struct {
off_t offsets[REMOTE_MAX_FDS];
} SyncSysmemMsg;
typedef struct {
uint32_t addr;
uint32_t val;
int len;
} PciConfDataMsg;
/**
* MPQemuMsg:
* @cmd: The remote command
@ -60,6 +69,7 @@ typedef struct {
union {
uint64_t u64;
PciConfDataMsg pci_conf_data;
SyncSysmemMsg sync_sysmem;
} data;