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Subject[PATCH 12/12] x86: Use struct fields instead of bitmasks
Date
Use fields in structs instead of bitmasks for getting/setting descriptor data.

Signed-off-by: Joe Damato <ice799@gmail.com>
---
drivers/lguest/interrupts_and_traps.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/lguest/interrupts_and_traps.c b/drivers/lguest/interrupts_and_traps.c
index bfb24d9..0d9c065 100644
--- a/drivers/lguest/interrupts_and_traps.c
+++ b/drivers/lguest/interrupts_and_traps.c
@@ -178,7 +178,7 @@ void maybe_do_interrupt(struct lg_cpu *cpu)
* over them. */
idt = &cpu->arch.idt[FIRST_EXTERNAL_VECTOR+irq];
/* If they don't have a handler (yet?), we just ignore it */
- if (idt_present(idt->a, idt->b)) {
+ if (idt->p) {
/* OK, mark it no longer pending and deliver it. */
clear_bit(irq, cpu->irqs_pending);
/* set_guest_interrupt() takes the interrupt descriptor and a
@@ -254,7 +254,7 @@ int deliver_trap(struct lg_cpu *cpu, unsigned int num)

/* Early on the Guest hasn't set the IDT entries (or maybe it put a
* bogus one in): if we fail here, the Guest will be killed. */
- if (!idt_present(cpu->arch.idt[num].a, cpu->arch.idt[num].b))
+ if (!cpu->arch.idt[num].p)
return 0;
set_guest_interrupt(cpu, desc_lo(cpu->arch.idt[num]),
desc_hi(cpu->arch.idt[num]), has_err(num));
@@ -461,7 +461,7 @@ void copy_traps(const struct lg_cpu *cpu, gate_desc *idt,
* If it can't go direct, we still need to copy the priv. level:
* they might want to give userspace access to a software
* interrupt. */
- if (idt_type(gidt->a, gidt->b) == 0xF)
+ if (gidt->type == 0xF)
idt[i] = *gidt;
else
default_idt_entry(&idt[i], i, def[i], gidt);
--
1.5.4.3


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