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lguest: suppress interrupts for single insn, not range.

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The last patch reduced our interrupt-suppression region to one address,
so simplify the code somewhat.

Also, remove the obsolete undefined instruction ranges and the comment
which refers to lguest_guest.S instead of head_32.S.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2015-03-24 11:51:39 +10:30
commit 2f921b5bb0
7 changed files with 18 additions and 26 deletions
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4
include/linux/lguest.h
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@ -61,8 +61,8 @@ struct lguest_data {
u32 tsc_khz;
/* Fields initialized by the Guest at boot: */
/* Instruction range to suppress interrupts even if enabled */
unsigned long noirq_start, noirq_end;
/* Instruction to suppress interrupts even if enabled */
unsigned long noirq_iret;
/* Address above which page tables are all identical. */
unsigned long kernel_address;
/* The vector to try to use for system calls (0x40 or 0x80). */