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authorIgor Mammedov <imammedo@redhat.com>2016-11-15 13:17:15 +0100
committerEduardo Habkost <ehabkost@redhat.com>2016-11-16 12:09:58 -0200
commit5836d16812cda6b93380632802d56411972e3148 (patch)
tree0f0a57d9d50446c6560b6546339d99527ee93c16 /hw/i386
parenteabff1582032b662fa58e6e880ca7399f1b78369 (diff)
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fw_cfg: move FW_CFG_NB_CPUS out of fw_cfg_init1()
PC will use this field in other way, so move it outside the common code so PC could set a different value, i.e. all CPUs regardless of where they are coming from (-smp X | -device cpu...). It's quick and dirty hack as it could be implemented in more generic way in MashineClass. But do it in simple way since only PC is affected so far. Later we can generalize it when another affected target gets support for -device cpu. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Message-Id: <1479212236-183810-3-git-send-email-imammedo@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'hw/i386')
-rw-r--r--hw/i386/pc.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index c227eadbfd..e8757b4c62 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -744,6 +744,7 @@ static FWCfgState *bochs_bios_init(AddressSpace *as, PCMachineState *pcms)
int i, j;
fw_cfg = fw_cfg_init_io_dma(FW_CFG_IO_BASE, FW_CFG_IO_BASE + 4, as);
+ fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
/* FW_CFG_MAX_CPUS is a bit confusing/problematic on x86:
*
@@ -1341,6 +1342,7 @@ void xen_load_linux(PCMachineState *pcms)
assert(MACHINE(pcms)->kernel_filename != NULL);
fw_cfg = fw_cfg_init_io(FW_CFG_IO_BASE);
+ fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
rom_set_fw(fw_cfg);
load_linux(pcms, fw_cfg);