UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

x86: puts read and write cr8 into pv_cpu_ops 

This patch adds room for read and write_cr8 functions back in
pv_cpu_ops struct

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Glauber de Oliveira Costa 2008-01-30 13:33:19 +01:00 committed by Ingo Molnar
parent 0466271305
commit 4c9890c246
1 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
include/asm-x86/paravirt.h
View File

@ -101,6 +101,11 @@ struct pv_cpu_ops {
unsigned long (*read_cr4)(void);
void (*write_cr4)(unsigned long);
#ifdef CONFIG_X86_64
unsigned long (*read_cr8)(void);
void (*write_cr8)(unsigned long);
#endif
/* Segment descriptor handling */
void (*load_tr_desc)(void);
void (*load_gdt)(const struct desc_ptr *);
@ -614,6 +619,16 @@ static inline void write_cr4(unsigned long x)
PVOP_VCALL1(pv_cpu_ops.write_cr4, x);
}
static inline unsigned long read_cr8(void)
{
return PVOP_CALL0(unsigned long, pv_cpu_ops.read_cr8);
}
static inline void write_cr8(unsigned long x)
{
PVOP_VCALL1(pv_cpu_ops.write_cr8, x);
}
static inline void raw_safe_halt(void)
{
PVOP_VCALL0(pv_irq_ops.safe_halt);