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[Qemu-devel] [PATCH v3 12/29] ide pc: Cut out the block layer geometry m
From: |
Markus Armbruster |
Subject: |
[Qemu-devel] [PATCH v3 12/29] ide pc: Cut out the block layer geometry middleman |
Date: |
Tue, 10 Jul 2012 11:12:38 +0200 |
PC BIOS setup needs IDE geometry information. Get it directly from
the device model rather than through the block layer. In preparation
of purging geometry from the block layer, which will happen later in
this series.
Signed-off-by: Markus Armbruster <address@hidden>
---
hw/ide.h | 4 +++-
hw/ide/core.c | 2 +-
hw/ide/internal.h | 2 +-
hw/ide/qdev.c | 21 +++++++++++++++++----
hw/pc.c | 51 +++++++++++++++++++++++++++------------------------
5 files changed, 49 insertions(+), 31 deletions(-)
diff --git a/hw/ide.h b/hw/ide.h
index 0b18c90..2db4079 100644
--- a/hw/ide.h
+++ b/hw/ide.h
@@ -29,7 +29,9 @@ void mmio_ide_init (target_phys_addr_t membase,
target_phys_addr_t membase2,
qemu_irq irq, int shift,
DriveInfo *hd0, DriveInfo *hd1);
-void ide_get_bs(BlockDriverState *bs[], BusState *qbus);
+int ide_get_geometry(BusState *bus, int unit,
+ int16_t *cyls, int8_t *heads, int8_t *secs);
+int ide_get_bios_chs_trans(BusState *bus, int unit);
/* ide/core.c */
void ide_drive_get(DriveInfo **hd, int max_bus);
diff --git a/hw/ide/core.c b/hw/ide/core.c
index 28f04ad..7f5ad07 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -1934,7 +1934,7 @@ int ide_init_drive(IDEState *s, BlockDriverState *bs,
IDEDriveKind kind,
s->drive_kind = kind;
bdrv_get_geometry(bs, &nb_sectors);
- hd_geometry_guess(bs, &cylinders, &heads, &secs, NULL);
+ hd_geometry_guess(bs, &cylinders, &heads, &secs, &s->chs_trans);
if (cylinders < 1 || cylinders > 16383) {
error_report("cyls must be between 1 and 16383");
return -1;
diff --git a/hw/ide/internal.h b/hw/ide/internal.h
index 1a02f57..56c718e 100644
--- a/hw/ide/internal.h
+++ b/hw/ide/internal.h
@@ -344,7 +344,7 @@ struct IDEState {
uint8_t unit;
/* ide config */
IDEDriveKind drive_kind;
- int cylinders, heads, sectors;
+ int cylinders, heads, sectors, chs_trans;
int64_t nb_sectors;
int mult_sectors;
int identify_set;
diff --git a/hw/ide/qdev.c b/hw/ide/qdev.c
index c122395..87e0b75 100644
--- a/hw/ide/qdev.c
+++ b/hw/ide/qdev.c
@@ -111,11 +111,24 @@ IDEDevice *ide_create_drive(IDEBus *bus, int unit,
DriveInfo *drive)
return DO_UPCAST(IDEDevice, qdev, dev);
}
-void ide_get_bs(BlockDriverState *bs[], BusState *qbus)
+int ide_get_geometry(BusState *bus, int unit,
+ int16_t *cyls, int8_t *heads, int8_t *secs)
{
- IDEBus *bus = DO_UPCAST(IDEBus, qbus, qbus);
- bs[0] = bus->master ? bus->master->conf.bs : NULL;
- bs[1] = bus->slave ? bus->slave->conf.bs : NULL;
+ IDEState *s = &DO_UPCAST(IDEBus, qbus, bus)->ifs[unit];
+
+ if (!s->bs) {
+ return -1;
+ }
+
+ *cyls = s->cylinders;
+ *heads = s->heads;
+ *secs = s->sectors;
+ return 0;
+}
+
+int ide_get_bios_chs_trans(BusState *bus, int unit)
+{
+ return DO_UPCAST(IDEBus, qbus, bus)->ifs[unit].chs_trans;
}
/* --------------------------------- */
diff --git a/hw/pc.c b/hw/pc.c
index 91cf77d..89a0c66 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -216,11 +216,9 @@ static int cmos_get_fd_drive_type(FDriveType fd0)
return val;
}
-static void cmos_init_hd(int type_ofs, int info_ofs, BlockDriverState *hd,
- ISADevice *s)
+static void cmos_init_hd(ISADevice *s, int type_ofs, int info_ofs,
+ int16_t cylinders, int8_t heads, int8_t sectors)
{
- int cylinders, heads, sectors;
- bdrv_get_geometry_hint(hd, &cylinders, &heads, §ors);
rtc_set_memory(s, type_ofs, 47);
rtc_set_memory(s, info_ofs, cylinders);
rtc_set_memory(s, info_ofs + 1, cylinders >> 8);
@@ -281,37 +279,42 @@ static int pc_boot_set(void *opaque, const char
*boot_device)
typedef struct pc_cmos_init_late_arg {
ISADevice *rtc_state;
- BusState *idebus0, *idebus1;
+ BusState *idebus[2];
} pc_cmos_init_late_arg;
static void pc_cmos_init_late(void *opaque)
{
pc_cmos_init_late_arg *arg = opaque;
ISADevice *s = arg->rtc_state;
+ int16_t cylinders;
+ int8_t heads, sectors;
int val;
- BlockDriverState *hd_table[4];
int i;
- ide_get_bs(hd_table, arg->idebus0);
- ide_get_bs(hd_table + 2, arg->idebus1);
-
- rtc_set_memory(s, 0x12, (hd_table[0] ? 0xf0 : 0) | (hd_table[1] ? 0x0f :
0));
- if (hd_table[0])
- cmos_init_hd(0x19, 0x1b, hd_table[0], s);
- if (hd_table[1])
- cmos_init_hd(0x1a, 0x24, hd_table[1], s);
+ val = 0;
+ if (ide_get_geometry(arg->idebus[0], 0,
+ &cylinders, &heads, §ors) >= 0) {
+ cmos_init_hd(s, 0x19, 0x1b, cylinders, heads, sectors);
+ val |= 0xf0;
+ }
+ if (ide_get_geometry(arg->idebus[0], 1,
+ &cylinders, &heads, §ors) >= 0) {
+ cmos_init_hd(s, 0x1a, 0x24, cylinders, heads, sectors);
+ val |= 0x0f;
+ }
+ rtc_set_memory(s, 0x12, val);
val = 0;
for (i = 0; i < 4; i++) {
- if (hd_table[i]) {
- int cylinders, heads, sectors, translation;
- /* NOTE: bdrv_get_geometry_hint() returns the physical
- geometry. It is always such that: 1 <= sects <= 63, 1
- <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
- geometry can be different if a translation is done. */
- translation = bdrv_get_translation_hint(hd_table[i]);
+ /* NOTE: ide_get_geometry() returns the physical
+ geometry. It is always such that: 1 <= sects <= 63, 1
+ <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
+ geometry can be different if a translation is done. */
+ if (ide_get_geometry(arg->idebus[i / 2], i % 2,
+ &cylinders, &heads, §ors) >= 0) {
+ int translation = ide_get_bios_chs_trans(arg->idebus[i / 2],
+ i % 2);
if (translation == BIOS_ATA_TRANSLATION_AUTO) {
- bdrv_get_geometry_hint(hd_table[i], &cylinders, &heads,
§ors);
if (cylinders <= 1024 && heads <= 16 && sectors <= 63) {
/* No translation. */
translation = 0;
@@ -411,8 +414,8 @@ void pc_cmos_init(ram_addr_t ram_size, ram_addr_t
above_4g_mem_size,
/* hard drives */
arg.rtc_state = s;
- arg.idebus0 = idebus0;
- arg.idebus1 = idebus1;
+ arg.idebus[0] = idebus0;
+ arg.idebus[1] = idebus1;
qemu_register_reset(pc_cmos_init_late, &arg);
}
--
1.7.6.5
- [Qemu-devel] [PATCH v3 06/29] hd-geometry: Add tracepoints, (continued)
- [Qemu-devel] [PATCH v3 06/29] hd-geometry: Add tracepoints, Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 02/29] vvfat: Fix partition table, Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 08/29] hd-geometry: Factor out guess_chs_for_size(), Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 01/29] fdc: Move floppy geometry guessing back from block.c, Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 11/29] hd-geometry: Cut out block layer translation middleman, Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 10/29] hd-geometry: Clean up confusing use of prior translation hint, Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 03/29] vvfat: Do not clobber the user's geometry, Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 07/29] hd-geometry: Unnest conditional in hd_geometry_guess(), Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 14/29] qdev: Introduce block geometry properties, Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 15/29] hd-geometry: Switch to uint32_t to match BlockConf, Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 12/29] ide pc: Cut out the block layer geometry middleman,
Markus Armbruster <=
- [Qemu-devel] [PATCH v3 21/29] qdev: New property type chs-translation, Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 13/29] blockdev: Save geometry in DriveInfo, Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 18/29] ide: qdev properties for disk geometry, Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 16/29] scsi-hd: qdev properties for disk geometry, Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 17/29] virtio-blk: qdev properties for disk geometry, Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 19/29] qtest: Cover qdev properties for disk geometry, Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 29/29] Relax IDE CHS limits from 16383, 16, 63 to 65535, 16, 255, Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 27/29] hd-geometry: Compute BIOS CHS translation in one place, Markus Armbruster, 2012/07/10
- [Qemu-devel] [PATCH v3 05/29] hd-geometry: Move disk geometry guessing back from block.c, Markus Armbruster, 2012/07/10