diff options
| author | Jan Kiszka <jan.kiszka@siemens.com> | 2011-02-07 12:19:26 +0100 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2011-02-14 12:43:09 -0200 |
| commit | 0ec329dab938e2d97d12a91f8ed15fec27b325e0 (patch) | |
| tree | 380012f1fda4003027243b35d4a811d2ec15f5c4 /hw/pc_piix.c | |
| parent | 6a7af8cb04c345eb1ed9d95250ef3ad4400e65c5 (diff) | |
kvm: x86: Introduce kvmclock device to save/restore its state
If kvmclock is used, which implies the kernel supports it, register a
kvmclock device with the sysbus. Its main purpose is to save and restore
the kernel state on migration, but this will also allow to visualize it
one day.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
CC: Glauber Costa <glommer@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'hw/pc_piix.c')
| -rw-r--r-- | hw/pc_piix.c | 32 |
1 files changed, 25 insertions, 7 deletions
diff --git a/hw/pc_piix.c b/hw/pc_piix.c index d0bd0cd1fa..291845478d 100644 --- a/hw/pc_piix.c +++ b/hw/pc_piix.c @@ -32,6 +32,7 @@ #include "boards.h" #include "ide.h" #include "kvm.h" +#include "kvmclock.h" #include "sysemu.h" #include "sysbus.h" #include "arch_init.h" @@ -66,7 +67,8 @@ static void pc_init1(ram_addr_t ram_size, const char *kernel_cmdline, const char *initrd_filename, const char *cpu_model, - int pci_enabled) + int pci_enabled, + int kvmclock_enabled) { int i; ram_addr_t below_4g_mem_size, above_4g_mem_size; @@ -86,6 +88,10 @@ static void pc_init1(ram_addr_t ram_size, pc_cpus_init(cpu_model); + if (kvmclock_enabled) { + kvmclock_create(); + } + /* allocate ram and load rom/bios */ pc_memory_init(ram_size, kernel_filename, kernel_cmdline, initrd_filename, &below_4g_mem_size, &above_4g_mem_size); @@ -193,7 +199,19 @@ static void pc_init_pci(ram_addr_t ram_size, { pc_init1(ram_size, boot_device, kernel_filename, kernel_cmdline, - initrd_filename, cpu_model, 1); + initrd_filename, cpu_model, 1, 1); +} + +static void pc_init_pci_no_kvmclock(ram_addr_t ram_size, + const char *boot_device, + const char *kernel_filename, + const char *kernel_cmdline, + const char *initrd_filename, + const char *cpu_model) +{ + pc_init1(ram_size, boot_device, + kernel_filename, kernel_cmdline, + initrd_filename, cpu_model, 1, 0); } static void pc_init_isa(ram_addr_t ram_size, @@ -207,7 +225,7 @@ static void pc_init_isa(ram_addr_t ram_size, cpu_model = "486"; pc_init1(ram_size, boot_device, kernel_filename, kernel_cmdline, - initrd_filename, cpu_model, 0); + initrd_filename, cpu_model, 0, 1); } static QEMUMachine pc_machine = { @@ -222,7 +240,7 @@ static QEMUMachine pc_machine = { static QEMUMachine pc_machine_v0_13 = { .name = "pc-0.13", .desc = "Standard PC", - .init = pc_init_pci, + .init = pc_init_pci_no_kvmclock, .max_cpus = 255, .compat_props = (GlobalProperty[]) { { @@ -249,7 +267,7 @@ static QEMUMachine pc_machine_v0_13 = { static QEMUMachine pc_machine_v0_12 = { .name = "pc-0.12", .desc = "Standard PC", - .init = pc_init_pci, + .init = pc_init_pci_no_kvmclock, .max_cpus = 255, .compat_props = (GlobalProperty[]) { { @@ -280,7 +298,7 @@ static QEMUMachine pc_machine_v0_12 = { static QEMUMachine pc_machine_v0_11 = { .name = "pc-0.11", .desc = "Standard PC, qemu 0.11", - .init = pc_init_pci, + .init = pc_init_pci_no_kvmclock, .max_cpus = 255, .compat_props = (GlobalProperty[]) { { @@ -319,7 +337,7 @@ static QEMUMachine pc_machine_v0_11 = { static QEMUMachine pc_machine_v0_10 = { .name = "pc-0.10", .desc = "Standard PC, qemu 0.10", - .init = pc_init_pci, + .init = pc_init_pci_no_kvmclock, .max_cpus = 255, .compat_props = (GlobalProperty[]) { { |