xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

lguest: add operations to get/set a register from the Launcher.

Browse Source 
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>
This commit is contained in:
Rusty Russell
2015-02-11 15:15:09 +10:30
parent a454bb36ca
commit 18c137371b
5 changed files with 108 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/lguest/lg.h
View File

@@ -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[];