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PPC: Add clock-frequency export for Mac machines 

Support in fwcfg has been around for exposure of the clock-frequency
CPU property. OpenBIOS reads it, we just never exposed it.

Since Mac OS X is very picky about its clock frequency values, let's
just take a known good value and always expose that.

Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2013-06-23 00:22:50 +02:00
parent 9761ad7571
commit a1014f25ef
3 changed files with 5 additions and 0 deletions
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2
hw/ppc/mac_newworld.c
View File

@ -449,6 +449,8 @@ static void ppc_core99_init(QEMUMachineInitArgs *args)
} else {
fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, get_ticks_per_sec());
}
/* Mac OS X requires a "known good" clock-frequency value; pass it one. */
fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, 266000000);
qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
}

2
hw/ppc/mac_oldworld.c
View File

@ -333,6 +333,8 @@ static void ppc_heathrow_init(QEMUMachineInitArgs *args)
} else {
fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, get_ticks_per_sec());
}
/* Mac OS X requires a "known good" clock-frequency value; pass it one. */
fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, 266000000);
qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
}

1
include/hw/ppc/ppc.h
View File

@ -87,6 +87,7 @@ enum {
#define FW_CFG_PPC_HEIGHT (FW_CFG_ARCH_LOCAL + 0x01)
#define FW_CFG_PPC_DEPTH (FW_CFG_ARCH_LOCAL + 0x02)
#define FW_CFG_PPC_TBFREQ (FW_CFG_ARCH_LOCAL + 0x03)
#define FW_CFG_PPC_CLOCKFREQ (FW_CFG_ARCH_LOCAL + 0x04)
#define FW_CFG_PPC_IS_KVM (FW_CFG_ARCH_LOCAL + 0x05)
#define FW_CFG_PPC_KVM_HC (FW_CFG_ARCH_LOCAL + 0x06)
#define FW_CFG_PPC_KVM_PID (FW_CFG_ARCH_LOCAL + 0x07)