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authorRusty Russell <rusty@rustcorp.com.au>2015-02-11 15:15:09 +1030
committerRusty Russell <rusty@rustcorp.com.au>2015-02-11 16:47:29 +1030
commit18c137371b2ea86d263b75665a4904a0b8872990 (patch)
tree59f8e6bf9b43195b8d9d77fb3235468baeb8d946 /drivers/lguest/lg.h
parenta454bb36cabdac163fcd80ddb37662893ea603f1 (diff)
downloadop-kernel-dev-18c137371b2ea86d263b75665a4904a0b8872990.zip
op-kernel-dev-18c137371b2ea86d263b75665a4904a0b8872990.tar.gz
lguest: add operations to get/set a register from the Launcher.
We use the ptrace API struct, and we currently don't let them set anything but the normal registers (we'd have to filter the others). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/lguest/lg.h')
-rw-r--r--drivers/lguest/lg.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h
index 2eef40b..1c98bf74 100644
--- a/drivers/lguest/lg.h
+++ b/drivers/lguest/lg.h
@@ -52,6 +52,8 @@ struct lg_cpu {
unsigned long pending_notify; /* pfn from LHCALL_NOTIFY */
+ unsigned long *reg_read; /* register from LHREQ_GETREG */
+
/* At end of a page shared mapped over lguest_pages in guest. */
unsigned long regs_page;
struct lguest_regs *regs;
@@ -210,6 +212,7 @@ void lguest_arch_handle_trap(struct lg_cpu *cpu);
int lguest_arch_init_hypercalls(struct lg_cpu *cpu);
int lguest_arch_do_hcall(struct lg_cpu *cpu, struct hcall_args *args);
void lguest_arch_setup_regs(struct lg_cpu *cpu, unsigned long start);
+unsigned long *lguest_arch_regptr(struct lg_cpu *cpu, size_t reg_off, bool any);
/* <arch>/switcher.S: */
extern char start_switcher_text[], end_switcher_text[], switch_to_guest[];
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