diff options
Diffstat (limited to 'drivers/lguest')
-rw-r--r-- | drivers/lguest/core.c | 6 | ||||
-rw-r--r-- | drivers/lguest/hypercalls.c | 6 | ||||
-rw-r--r-- | drivers/lguest/lg.h | 3 | ||||
-rw-r--r-- | drivers/lguest/lguest_user.c | 4 |
4 files changed, 10 insertions, 9 deletions
diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c index 66c3d3b17fe4..6023872e32d0 100644 --- a/drivers/lguest/core.c +++ b/drivers/lguest/core.c | |||
@@ -186,10 +186,10 @@ int run_guest(struct lg_cpu *cpu, unsigned long __user *user) | |||
186 | 186 | ||
187 | /* It's possible the Guest did a NOTIFY hypercall to the | 187 | /* It's possible the Guest did a NOTIFY hypercall to the |
188 | * Launcher, in which case we return from the read() now. */ | 188 | * Launcher, in which case we return from the read() now. */ |
189 | if (lg->pending_notify) { | 189 | if (cpu->pending_notify) { |
190 | if (put_user(lg->pending_notify, user)) | 190 | if (put_user(cpu->pending_notify, user)) |
191 | return -EFAULT; | 191 | return -EFAULT; |
192 | return sizeof(lg->pending_notify); | 192 | return sizeof(cpu->pending_notify); |
193 | } | 193 | } |
194 | 194 | ||
195 | /* Check for signals */ | 195 | /* Check for signals */ |
diff --git a/drivers/lguest/hypercalls.c b/drivers/lguest/hypercalls.c index ab70bbebdf25..be8f04685767 100644 --- a/drivers/lguest/hypercalls.c +++ b/drivers/lguest/hypercalls.c | |||
@@ -91,7 +91,7 @@ static void do_hcall(struct lg_cpu *cpu, struct hcall_args *args) | |||
91 | cpu->halted = 1; | 91 | cpu->halted = 1; |
92 | break; | 92 | break; |
93 | case LHCALL_NOTIFY: | 93 | case LHCALL_NOTIFY: |
94 | lg->pending_notify = args->arg1; | 94 | cpu->pending_notify = args->arg1; |
95 | break; | 95 | break; |
96 | default: | 96 | default: |
97 | /* It should be an architecture-specific hypercall. */ | 97 | /* It should be an architecture-specific hypercall. */ |
@@ -154,7 +154,7 @@ static void do_async_hcalls(struct lg_cpu *cpu) | |||
154 | 154 | ||
155 | /* Stop doing hypercalls if they want to notify the Launcher: | 155 | /* Stop doing hypercalls if they want to notify the Launcher: |
156 | * it needs to service this first. */ | 156 | * it needs to service this first. */ |
157 | if (lg->pending_notify) | 157 | if (cpu->pending_notify) |
158 | break; | 158 | break; |
159 | } | 159 | } |
160 | } | 160 | } |
@@ -219,7 +219,7 @@ void do_hypercalls(struct lg_cpu *cpu) | |||
219 | /* If we stopped reading the hypercall ring because the Guest did a | 219 | /* If we stopped reading the hypercall ring because the Guest did a |
220 | * NOTIFY to the Launcher, we want to return now. Otherwise we do | 220 | * NOTIFY to the Launcher, we want to return now. Otherwise we do |
221 | * the hypercall. */ | 221 | * the hypercall. */ |
222 | if (!cpu->lg->pending_notify) { | 222 | if (!cpu->pending_notify) { |
223 | do_hcall(cpu, cpu->hcall); | 223 | do_hcall(cpu, cpu->hcall); |
224 | /* Tricky point: we reset the hcall pointer to mark the | 224 | /* Tricky point: we reset the hcall pointer to mark the |
225 | * hypercall as "done". We use the hcall pointer rather than | 225 | * hypercall as "done". We use the hcall pointer rather than |
diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h index 05637648a174..95b473cdd0e0 100644 --- a/drivers/lguest/lg.h +++ b/drivers/lguest/lg.h | |||
@@ -51,6 +51,8 @@ struct lg_cpu { | |||
51 | u32 esp1; | 51 | u32 esp1; |
52 | u8 ss1; | 52 | u8 ss1; |
53 | 53 | ||
54 | unsigned long pending_notify; /* pfn from LHCALL_NOTIFY */ | ||
55 | |||
54 | /* At end of a page shared mapped over lguest_pages in guest. */ | 56 | /* At end of a page shared mapped over lguest_pages in guest. */ |
55 | unsigned long regs_page; | 57 | unsigned long regs_page; |
56 | struct lguest_regs *regs; | 58 | struct lguest_regs *regs; |
@@ -95,7 +97,6 @@ struct lguest | |||
95 | struct pgdir pgdirs[4]; | 97 | struct pgdir pgdirs[4]; |
96 | 98 | ||
97 | unsigned long noirq_start, noirq_end; | 99 | unsigned long noirq_start, noirq_end; |
98 | unsigned long pending_notify; /* pfn from LHCALL_NOTIFY */ | ||
99 | 100 | ||
100 | unsigned int stack_pages; | 101 | unsigned int stack_pages; |
101 | u32 tsc_khz; | 102 | u32 tsc_khz; |
diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c index 980b3550db7f..f4f6df85bece 100644 --- a/drivers/lguest/lguest_user.c +++ b/drivers/lguest/lguest_user.c | |||
@@ -89,8 +89,8 @@ static ssize_t read(struct file *file, char __user *user, size_t size,loff_t*o) | |||
89 | 89 | ||
90 | /* If we returned from read() last time because the Guest notified, | 90 | /* If we returned from read() last time because the Guest notified, |
91 | * clear the flag. */ | 91 | * clear the flag. */ |
92 | if (lg->pending_notify) | 92 | if (cpu->pending_notify) |
93 | lg->pending_notify = 0; | 93 | cpu->pending_notify = 0; |
94 | 94 | ||
95 | /* Run the Guest until something interesting happens. */ | 95 | /* Run the Guest until something interesting happens. */ |
96 | return run_guest(cpu, (unsigned long __user *)user); | 96 | return run_guest(cpu, (unsigned long __user *)user); |