From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38192) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Wzca9-00074B-QN for qemu-devel@nongnu.org; Tue, 24 Jun 2014 22:05:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Wzca5-00018A-0s for qemu-devel@nongnu.org; Tue, 24 Jun 2014 22:05:05 -0400 Received: from mx1.redhat.com ([209.132.183.28]:12751) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Wzca4-000184-PF for qemu-devel@nongnu.org; Tue, 24 Jun 2014 22:05:00 -0400 From: Eduardo Habkost Date: Tue, 24 Jun 2014 23:04:44 -0300 Message-Id: <1403661885-28619-2-git-send-email-ehabkost@redhat.com> In-Reply-To: <1403661885-28619-1-git-send-email-ehabkost@redhat.com> References: <1403661885-28619-1-git-send-email-ehabkost@redhat.com> Subject: [Qemu-devel] [PATCH v2 1/2] pc: Move q35 compat props to PC_COMPAT_* List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, "Michael S. Tsirkin" Cc: Peter Maydell , Liu Ping Fan For each compat property on PC_Q35_COMPAT_*, there are only two possibilities: * If the device is never instantiated when using a machine other than pc-q35, then the compat property can be safely added to PC_COMPAT_*; * If the device can be instantiated when using a machine other than pc-q35, that means the other machines also need the compat property to be set. That means we don't need separate PC_Q35_COMPAT_* macros at all, today. The hpet.hpet-intcap case is interesting: piix and q35 do have something that emulates different defaults, but the machine-specific default is applied _after_ compat_props are applied, by simply checking if the property is zero (which is the real default on the hpet code). The hpet.hpet-intcap=0x4 compat property can (should?) be applied to piix too, because 0x4 was the default on both piix and q35 before the hpet-intcap property was introduced. Now, if one day we change the default HPET intcap on one of the PC machine-types again, we may want to introduce PC_{Q35,I440FX}_COMPAT macros. But while we don't need that, we can keep the code simple. Signed-off-by: Eduardo Habkost Cc: Liu Ping Fan Cc: Peter Maydell --- hw/i386/pc_q35.c | 10 +++++----- include/hw/i386/pc.h | 55 +++++++++++++++++----------------------------------- 2 files changed, 23 insertions(+), 42 deletions(-) diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c index 155db99..36b6ab0 100644 --- a/hw/i386/pc_q35.c +++ b/hw/i386/pc_q35.c @@ -361,7 +361,7 @@ static QEMUMachine pc_q35_machine_v2_0 = { .name = "pc-q35-2.0", .init = pc_q35_init_2_0, .compat_props = (GlobalProperty[]) { - PC_Q35_COMPAT_2_0, + PC_COMPAT_2_0, { /* end of list */ } }, }; @@ -373,7 +373,7 @@ static QEMUMachine pc_q35_machine_v1_7 = { .name = "pc-q35-1.7", .init = pc_q35_init_1_7, .compat_props = (GlobalProperty[]) { - PC_Q35_COMPAT_1_7, + PC_COMPAT_1_7, { /* end of list */ } }, }; @@ -385,7 +385,7 @@ static QEMUMachine pc_q35_machine_v1_6 = { .name = "pc-q35-1.6", .init = pc_q35_init_1_6, .compat_props = (GlobalProperty[]) { - PC_Q35_COMPAT_1_6, + PC_COMPAT_1_6, { /* end of list */ } }, }; @@ -395,7 +395,7 @@ static QEMUMachine pc_q35_machine_v1_5 = { .name = "pc-q35-1.5", .init = pc_q35_init_1_5, .compat_props = (GlobalProperty[]) { - PC_Q35_COMPAT_1_5, + PC_COMPAT_1_5, { /* end of list */ } }, }; @@ -409,7 +409,7 @@ static QEMUMachine pc_q35_machine_v1_4 = { .name = "pc-q35-1.4", .init = pc_q35_init_1_4, .compat_props = (GlobalProperty[]) { - PC_Q35_COMPAT_1_4, + PC_COMPAT_1_4, { /* end of list */ } }, }; diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index 1331d5a..1c0c382 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -294,43 +294,6 @@ int e820_add_entry(uint64_t, uint64_t, uint32_t); int e820_get_num_entries(void); bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *); -#define PC_Q35_COMPAT_2_0 \ - PC_COMPAT_2_0, \ - {\ - .driver = "ICH9-LPC",\ - .property = "memory-hotplug-support",\ - .value = "off",\ - },{\ - .driver = "xio3130-downstream",\ - .property = COMPAT_PROP_PCP,\ - .value = "off",\ - },{\ - .driver = "ioh3420",\ - .property = COMPAT_PROP_PCP,\ - .value = "off",\ - } - -#define PC_Q35_COMPAT_1_7 \ - PC_COMPAT_1_7, \ - PC_Q35_COMPAT_2_0, \ - {\ - .driver = "hpet",\ - .property = HPET_INTCAP,\ - .value = stringify(4),\ - } - -#define PC_Q35_COMPAT_1_6 \ - PC_COMPAT_1_6, \ - PC_Q35_COMPAT_1_7 - -#define PC_Q35_COMPAT_1_5 \ - PC_COMPAT_1_5, \ - PC_Q35_COMPAT_1_6 - -#define PC_Q35_COMPAT_1_4 \ - PC_COMPAT_1_4, \ - PC_Q35_COMPAT_1_5 - #define PC_COMPAT_2_0 \ {\ .driver = "virtio-scsi-pci",\ @@ -370,6 +333,19 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *); .driver = "virtio-net-pci",\ .property = "guest_announce",\ .value = "off",\ + },\ + {\ + .driver = "ICH9-LPC",\ + .property = "memory-hotplug-support",\ + .value = "off",\ + },{\ + .driver = "xio3130-downstream",\ + .property = COMPAT_PROP_PCP,\ + .value = "off",\ + },{\ + .driver = "ioh3420",\ + .property = COMPAT_PROP_PCP,\ + .value = "off",\ } #define PC_COMPAT_1_7 \ @@ -383,6 +359,11 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *); .driver = "PIIX4_PM",\ .property = "acpi-pci-hotplug-with-bridge-support",\ .value = "off",\ + },\ + {\ + .driver = "hpet",\ + .property = HPET_INTCAP,\ + .value = stringify(4),\ } #define PC_COMPAT_1_6 \ -- 1.9.3