From: Wei Liu <wei.liu2@citrix.com>
To: Xen-devel <xen-devel@lists.xenproject.org>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
Wei Liu <wei.liu2@citrix.com>, Jan Beulich <JBeulich@suse.com>
Subject: [PATCH v4 20/27] x86: move hypercall_page_initialise_ring1_kernel
Date: Thu, 8 Jun 2017 18:11:56 +0100 [thread overview]
Message-ID: <20170608171203.20416-21-wei.liu2@citrix.com> (raw)
In-Reply-To: <20170608171203.20416-1-wei.liu2@citrix.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
---
xen/arch/x86/pv/hypercall.c | 31 +++++++++++++++++++++++++++++++
xen/arch/x86/x86_64/compat/traps.c | 31 -------------------------------
xen/include/asm-x86/hypercall.h | 1 +
3 files changed, 32 insertions(+), 31 deletions(-)
diff --git a/xen/arch/x86/pv/hypercall.c b/xen/arch/x86/pv/hypercall.c
index 287340e774..58dc0f5c32 100644
--- a/xen/arch/x86/pv/hypercall.c
+++ b/xen/arch/x86/pv/hypercall.c
@@ -291,6 +291,37 @@ void hypercall_page_initialise_ring3_kernel(void *hypercall_page)
*(u16 *)(p+ 9) = 0x050f; /* syscall */
}
+void hypercall_page_initialise_ring1_kernel(void *hypercall_page)
+{
+ char *p;
+ int i;
+
+ /* Fill in all the transfer points with template machine code. */
+
+ for ( i = 0; i < (PAGE_SIZE / 32); i++ )
+ {
+ if ( i == __HYPERVISOR_iret )
+ continue;
+
+ p = (char *)(hypercall_page + (i * 32));
+ *(u8 *)(p+ 0) = 0xb8; /* mov $<i>,%eax */
+ *(u32 *)(p+ 1) = i;
+ *(u16 *)(p+ 5) = (HYPERCALL_VECTOR << 8) | 0xcd; /* int $xx */
+ *(u8 *)(p+ 7) = 0xc3; /* ret */
+ }
+
+ /*
+ * HYPERVISOR_iret is special because it doesn't return and expects a
+ * special stack frame. Guests jump at this transfer point instead of
+ * calling it.
+ */
+ p = (char *)(hypercall_page + (__HYPERVISOR_iret * 32));
+ *(u8 *)(p+ 0) = 0x50; /* push %eax */
+ *(u8 *)(p+ 1) = 0xb8; /* mov $__HYPERVISOR_iret,%eax */
+ *(u32 *)(p+ 2) = __HYPERVISOR_iret;
+ *(u16 *)(p+ 6) = (HYPERCALL_VECTOR << 8) | 0xcd; /* int $xx */
+}
+
/*
* Local variables:
* mode: C
diff --git a/xen/arch/x86/x86_64/compat/traps.c b/xen/arch/x86/x86_64/compat/traps.c
index 1751ec67e8..f485299c88 100644
--- a/xen/arch/x86/x86_64/compat/traps.c
+++ b/xen/arch/x86/x86_64/compat/traps.c
@@ -374,37 +374,6 @@ int compat_set_trap_table(XEN_GUEST_HANDLE(trap_info_compat_t) traps)
return rc;
}
-static void hypercall_page_initialise_ring1_kernel(void *hypercall_page)
-{
- char *p;
- int i;
-
- /* Fill in all the transfer points with template machine code. */
-
- for ( i = 0; i < (PAGE_SIZE / 32); i++ )
- {
- if ( i == __HYPERVISOR_iret )
- continue;
-
- p = (char *)(hypercall_page + (i * 32));
- *(u8 *)(p+ 0) = 0xb8; /* mov $<i>,%eax */
- *(u32 *)(p+ 1) = i;
- *(u16 *)(p+ 5) = (HYPERCALL_VECTOR << 8) | 0xcd; /* int $xx */
- *(u8 *)(p+ 7) = 0xc3; /* ret */
- }
-
- /*
- * HYPERVISOR_iret is special because it doesn't return and expects a
- * special stack frame. Guests jump at this transfer point instead of
- * calling it.
- */
- p = (char *)(hypercall_page + (__HYPERVISOR_iret * 32));
- *(u8 *)(p+ 0) = 0x50; /* push %eax */
- *(u8 *)(p+ 1) = 0xb8; /* mov $__HYPERVISOR_iret,%eax */
- *(u32 *)(p+ 2) = __HYPERVISOR_iret;
- *(u16 *)(p+ 6) = (HYPERCALL_VECTOR << 8) | 0xcd; /* int $xx */
-}
-
/*
* Local variables:
* mode: C
diff --git a/xen/include/asm-x86/hypercall.h b/xen/include/asm-x86/hypercall.h
index 5631cf2694..3eb4a8db89 100644
--- a/xen/include/asm-x86/hypercall.h
+++ b/xen/include/asm-x86/hypercall.h
@@ -27,6 +27,7 @@ extern const hypercall_args_t hypercall_args_table[NR_hypercalls];
void pv_hypercall(struct cpu_user_regs *regs);
void hypercall_page_initialise_ring3_kernel(void *hypercall_page);
+void hypercall_page_initialise_ring1_kernel(void *hypercall_page);
/*
* Both do_mmuext_op() and do_mmu_update():
--
2.11.0
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next prev parent reply other threads:[~2017-06-08 17:16 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-08 17:11 [PATCH v4 00/27] x86: refactor trap handling code Wei Liu
2017-06-08 17:11 ` [PATCH v4 01/27] x86: factor out common PV emulation code Wei Liu
2017-06-20 16:00 ` Jan Beulich
2017-06-08 17:11 ` [PATCH v4 02/27] x86: move PV privileged instruction " Wei Liu
2017-06-20 16:03 ` Jan Beulich
2017-06-08 17:11 ` [PATCH v4 03/27] x86: move PV gate op " Wei Liu
2017-06-20 16:05 ` Jan Beulich
2017-06-08 17:11 ` [PATCH v4 04/27] x86: move PV invalid " Wei Liu
2017-06-20 16:21 ` Jan Beulich
2017-06-20 16:25 ` Wei Liu
2017-06-21 6:15 ` Jan Beulich
2017-06-21 8:57 ` Wei Liu
2017-06-21 9:09 ` Jan Beulich
2017-06-21 9:14 ` Wei Liu
2017-06-21 9:26 ` Jan Beulich
2017-06-21 9:29 ` Wei Liu
2017-06-08 17:11 ` [PATCH v4 05/27] x86/traps: remove now unused inclusion of emulate.h Wei Liu
2017-06-20 16:21 ` Jan Beulich
2017-06-08 17:11 ` [PATCH v4 06/27] x86: clean up PV emulation code Wei Liu
2017-06-23 10:56 ` Andrew Cooper
2017-06-08 17:11 ` [PATCH v4 07/27] x86: move do_set_trap_table to pv/traps.c Wei Liu
2017-06-23 11:00 ` Andrew Cooper
2017-06-23 13:59 ` Wei Liu
2017-06-23 13:59 ` Andrew Cooper
2017-06-08 17:11 ` [PATCH v4 08/27] x86: move some misc PV hypercalls to misc-hypercalls.c Wei Liu
2017-06-23 11:02 ` Andrew Cooper
2017-06-08 17:11 ` [PATCH v4 09/27] x86/traps: move pv_inject_event to pv/traps.c Wei Liu
2017-06-23 11:04 ` Andrew Cooper
2017-06-08 17:11 ` [PATCH v4 10/27] x86/traps: move set_guest_{machine, nmi}_trapbounce Wei Liu
2017-06-23 11:05 ` Andrew Cooper
2017-06-08 17:11 ` [PATCH v4 11/27] x86:/traps: move {un, }register_guest_nmi_callback Wei Liu
2017-06-23 11:38 ` Andrew Cooper
2017-06-23 12:19 ` Andrew Cooper
2017-06-08 17:11 ` [PATCH v4 12/27] x86/traps: move guest_has_trap_callback to pv/traps.c Wei Liu
2017-06-23 12:01 ` Andrew Cooper
2017-06-08 17:11 ` [PATCH v4 13/27] x86: move toggle_guest_mode to pv/domain.c Wei Liu
2017-06-23 12:10 ` Andrew Cooper
2017-06-08 17:11 ` [PATCH v4 14/27] x86: move do_iret to pv/iret.c Wei Liu
2017-06-23 12:12 ` Andrew Cooper
2017-06-23 14:17 ` Wei Liu
2017-06-23 14:17 ` Andrew Cooper
2017-06-08 17:11 ` [PATCH v4 15/27] x86: move callback_op code to pv/callback.c Wei Liu
2017-06-08 17:11 ` [PATCH v4 16/27] x86/traps: factor out pv_trap_init Wei Liu
2017-06-23 12:31 ` Andrew Cooper
2017-06-23 13:55 ` Wei Liu
2017-06-08 17:11 ` [PATCH v4 17/27] x86/traps: move some PV specific functions and struct to pv/traps.c Wei Liu
2017-06-23 12:36 ` Andrew Cooper
2017-06-08 17:11 ` [PATCH v4 18/27] x86/traps: move init_int80_direct_trap " Wei Liu
2017-06-23 12:37 ` Andrew Cooper
2017-06-08 17:11 ` [PATCH v4 19/27] x86: move hypercall_page_initialise_ring3_kernel to pv/hypercall.c Wei Liu
2017-06-23 12:41 ` Andrew Cooper
2017-06-23 14:49 ` Wei Liu
2017-06-23 14:53 ` Andrew Cooper
2017-06-08 17:11 ` Wei Liu [this message]
2017-06-23 12:41 ` [PATCH v4 20/27] x86: move hypercall_page_initialise_ring1_kernel Andrew Cooper
2017-06-23 13:56 ` Wei Liu
2017-06-23 13:56 ` Andrew Cooper
2017-06-08 17:11 ` [PATCH v4 21/27] x86: move compat_set_trap_table along side the non-compat variant Wei Liu
2017-06-23 12:43 ` Andrew Cooper
2017-06-08 17:11 ` [PATCH v4 22/27] x86: move compat_iret along side its " Wei Liu
2017-06-23 12:44 ` Andrew Cooper
2017-06-08 17:11 ` [PATCH v4 23/27] x86: move the compat callback ops next to the " Wei Liu
2017-06-23 13:40 ` Jan Beulich
2017-06-08 17:12 ` [PATCH v4 24/27] x86: move compat_show_guest_statck near its " Wei Liu
2017-06-23 12:47 ` Andrew Cooper
2017-06-08 17:12 ` [PATCH v4 25/27] x86: remove the now empty x86_64/compat/traps.c Wei Liu
2017-06-23 12:47 ` Andrew Cooper
2017-06-08 17:12 ` [PATCH v4 26/27] x86: fix coding a style issue in asm-x86/traps.h Wei Liu
2017-06-23 12:48 ` Andrew Cooper
2017-06-08 17:12 ` [PATCH v4 27/27] x86: clean up traps.c Wei Liu
2017-06-23 12:50 ` Andrew Cooper
2017-06-23 13:45 ` Jan Beulich
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