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authorAlexander Graf <agraf@suse.de>2011-02-01 15:51:30 +0100
committerKevin Wolf <kwolf@redhat.com>2011-02-07 11:38:57 +0100
commit760c3e44d3a1d8a7e9d22f0429b1805d1c688178 (patch)
tree1d21499b67afd2bad54fac97072d59d447535368 /hw/ide
parent87e62065bb5e0e544e45e6935e3ac2b053fe446e (diff)
ahci: Implement HBA reset
The ahci code was missing its soft reset functionality. This wasn't really an issue for Linux guests, but Windows gets confused when the controller doesn't reset when it tells it so. Using this patch I can now successfully boot Windows 7 from AHCI using AHCI enabled SeaBIOS. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'hw/ide')
-rw-r--r--hw/ide/ahci.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
index e6ac77c67..105dd5391 100644
--- a/hw/ide/ahci.c
+++ b/hw/ide/ahci.c
@@ -335,7 +335,7 @@ static void ahci_mem_writel(void *ptr, target_phys_addr_t addr, uint32_t val)
case HOST_CTL: /* R/W */
if (val & HOST_CTL_RESET) {
DPRINTF(-1, "HBA Reset\n");
- /* FIXME reset? */
+ ahci_reset(container_of(s, AHCIPCIState, ahci));
} else {
s->control_regs.ghc = (val & 0x3) | HOST_CTL_AHCI_EN;
ahci_check_irq(s);
@@ -1134,6 +1134,9 @@ void ahci_reset(void *opaque)
struct AHCIPCIState *d = opaque;
int i;
+ d->ahci.control_regs.irqstatus = 0;
+ d->ahci.control_regs.ghc = 0;
+
for (i = 0; i < SATA_PORTS; i++) {
ahci_reset_port(&d->ahci, i);
}