clearlinux/kvmtool
2
0
Fork 0
mirror of https://github.com/clearlinux/kvmtool.git synced 2026-09-04 12:41:37 +00:00
Code Issues Packages Projects Releases Wiki Activity

kvm: Support MSR register for serial console

Browse Source 
Signed-off-by: Pekka Enberg <penberg@kernel.org>
This commit is contained in:
Pekka Enberg
2015-06-01 16:39:41 +01:00
committed by Will Deacon
parent 4155ba8cda
commit a93ec68b66
1 changed files with 11 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
early_printk.c
+11
View File
@@ -10,6 +10,7 @@ static int early_serial_base = 0x3f8; /* ttyS0 */
#define TXR 0 /* Transmit register (WRITE) */
#define LSR 5 /* Line Status */
#define MSR 6 /* Modem Status */
static bool early_serial_txr_out(struct kvm *self, uint16_t port, void *data, int size, uint32_t count)
{
@@ -48,8 +49,18 @@ static struct ioport_operations early_serial_lsr_ops = {
.io_in = early_serial_lsr_in,
};
static bool early_serial_msr_in(struct kvm *self, uint16_t port, void *data, int size, uint32_t count)
{
return true;
}
static struct ioport_operations early_serial_msr_ops = {
.io_in = early_serial_msr_in,
};
void early_printk__init(void)
{
ioport__register(early_serial_base + TXR, &early_serial_txr_rxr_ops, 1);
ioport__register(early_serial_base + LSR, &early_serial_lsr_ops, 1);
ioport__register(early_serial_base + MSR, &early_serial_msr_ops, 1);
}