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| author | Rusty Russell <rusty@rustcorp.com.au> | 2015-02-11 15:15:09 +1030 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2015-02-11 16:47:29 +1030 |
| commit | 18c137371b2ea86d263b75665a4904a0b8872990 (patch) | |
| tree | 59f8e6bf9b43195b8d9d77fb3235468baeb8d946 /drivers/lguest/lg.h | |
| parent | a454bb36cabdac163fcd80ddb37662893ea603f1 (diff) | |
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.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h index 2eef40be4c04..1c98bf74fd68 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[]; |