diff options
| author | Glauber de Oliveira Costa <gcosta@redhat.com> | 2008-01-07 11:05:37 -0200 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2008-01-30 22:50:14 +1100 |
| commit | 1713608f280002d9ffc6de89d7de5cf367072d63 (patch) | |
| tree | 332e7bdbe7ccccad408b309a4dd00b706b04082f /drivers/lguest/x86 | |
| parent | 5e232f4f428c4266ba5cdae9f23ba19a0913dcf9 (diff) | |
| download | op-kernel-dev-1713608f280002d9ffc6de89d7de5cf367072d63.zip op-kernel-dev-1713608f280002d9ffc6de89d7de5cf367072d63.tar.gz | |
lguest: per-vcpu lguest pgdir management
this patch makes the pgdir management per-vcpu. The pgdirs pool
is still guest-wide (although it'll probably need to grow when we
are really executing more vcpus), but the pgdidx index is gone,
since it makes no sense anymore. Instead, we use a per-vcpu
index.
Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/lguest/x86')
| -rw-r--r-- | drivers/lguest/x86/core.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c index 65f2e38..8c72355 100644 --- a/drivers/lguest/x86/core.c +++ b/drivers/lguest/x86/core.c @@ -145,7 +145,7 @@ static void run_guest_once(struct lg_cpu *cpu, struct lguest_pages *pages) * 0-th argument above, ie "a"). %ebx contains the * physical address of the Guest's top-level page * directory. */ - : "0"(pages), "1"(__pa(lg->pgdirs[lg->pgdidx].pgdir)) + : "0"(pages), "1"(__pa(lg->pgdirs[cpu->cpu_pgd].pgdir)) /* We tell gcc that all these registers could change, * which means we don't have to save and restore them in * the Switcher. */ @@ -223,7 +223,7 @@ static int emulate_insn(struct lg_cpu *cpu) unsigned int insnlen = 0, in = 0, shift = 0; /* The eip contains the *virtual* address of the Guest's instruction: * guest_pa just subtracts the Guest's page_offset. */ - unsigned long physaddr = guest_pa(lg, cpu->regs->eip); + unsigned long physaddr = guest_pa(cpu, cpu->regs->eip); /* This must be the Guest kernel trying to do something, not userspace! * The bottom two bits of the CS segment register are the privilege @@ -305,7 +305,8 @@ void lguest_arch_handle_trap(struct lg_cpu *cpu) * * The errcode tells whether this was a read or a write, and * whether kernel or userspace code. */ - if (demand_page(lg,cpu->arch.last_pagefault,cpu->regs->errcode)) + if (demand_page(cpu, cpu->arch.last_pagefault, + cpu->regs->errcode)) return; /* OK, it's really not there (or not OK): the Guest needs to |
