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authorAlexander Graf <agraf@suse.de>2013-06-23 00:22:50 +0200
committerAlexander Graf <agraf@suse.de>2013-07-01 01:11:17 +0200
commita1014f25ef54bbbdaf571873a1254f85d6dcf132 (patch)
treee942930ffabd3b5fd84363773687cb252cfb592f /hw/ppc
parent9761ad757182be663fa31af99abad959ac63b17f (diff)
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>
Diffstat (limited to 'hw/ppc')
-rw-r--r--hw/ppc/mac_newworld.c2
-rw-r--r--hw/ppc/mac_oldworld.c2
2 files changed, 4 insertions, 0 deletions
diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c
index d8e4db3b6a..c6889d1055 100644
--- a/hw/ppc/mac_newworld.c
+++ b/hw/ppc/mac_newworld.c
@@ -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);
}
diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c
index 3acca94432..8faff300ff 100644
--- a/hw/ppc/mac_oldworld.c
+++ b/hw/ppc/mac_oldworld.c
@@ -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);
}