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lguest: use defines from x86 headers instead of magic numbers

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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2007-10-25 14:09:53 +10:00
parent db24e8c2ef
commit 25c47bb353
2 changed files with 3 additions and 4 deletions
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5
arch/x86/lguest/boot.c
View File

@ -371,8 +371,7 @@ static void lguest_cpuid(unsigned int *eax, unsigned int *ebx,
static unsigned long current_cr0, current_cr3;
static void lguest_write_cr0(unsigned long val)
{
/* 8 == TS bit. */
lazy_hcall(LHCALL_TS, val & 8, 0, 0);
lazy_hcall(LHCALL_TS, val & X86_CR0_TS, 0, 0);
current_cr0 = val;
}
@ -387,7 +386,7 @@ static unsigned long lguest_read_cr0(void)
static void lguest_clts(void)
{
lazy_hcall(LHCALL_TS, 0, 0, 0);
current_cr0 &= ~8U;
current_cr0 &= ~X86_CR0_TS;
}
/* CR2 is the virtual address of the last page fault, which the Guest only ever

2
drivers/lguest/x86/core.c
View File

@ -562,7 +562,7 @@ void lguest_arch_setup_regs(struct lguest *lg, unsigned long start)
* is supposed to always be "1". Bit 9 (0x200) controls whether
* interrupts are enabled. We always leave interrupts enabled while
* running the Guest. */
regs->eflags = 0x202;
regs->eflags = X86_EFLAGS_IF | 0x2;
/* The "Extended Instruction Pointer" register says where the Guest is
* running. */