From 437fd90c0250dee670290f9b714253671a990160 Mon Sep 17 00:00:00 2001
From: José Pekkarinen <jose.pekkarinen@nokia.com>
Date: Wed, 18 May 2016 13:18:31 +0300
Subject: These changes are the raw update to qemu-2.6.
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Collission happened in the following patches:

migration: do cleanup operation after completion(738df5b9)
Bug fix.(1750c932f86)
kvmclock: add a new function to update env->tsc.(b52baab2)

The code provided by the patches was already in the upstreamed
version.

Change-Id: I3cc11841a6a76ae20887b2e245710199e1ea7f9a
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
---
 qemu/roms/seabios/src/x86.h | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

(limited to 'qemu/roms/seabios/src/x86.h')

diff --git a/qemu/roms/seabios/src/x86.h b/qemu/roms/seabios/src/x86.h
index 7798b1c17..53378e9ed 100644
--- a/qemu/roms/seabios/src/x86.h
+++ b/qemu/roms/seabios/src/x86.h
@@ -75,14 +75,22 @@ static inline void __cpuid(u32 index, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
         : "0" (index));
 }
 
-static inline u32 getcr0(void) {
+static inline u32 cr0_read(void) {
     u32 cr0;
     asm("movl %%cr0, %0" : "=r"(cr0));
     return cr0;
 }
-static inline void setcr0(u32 cr0) {
+static inline void cr0_write(u32 cr0) {
     asm("movl %0, %%cr0" : : "r"(cr0));
 }
+static inline void cr0_mask(u32 off, u32 on) {
+    cr0_write((cr0_read() & ~off) | on);
+}
+static inline u16 cr0_vm86_read(void) {
+    u16 cr0;
+    asm("smsww %0" : "=r"(cr0));
+    return cr0;
+}
 
 static inline u64 rdmsr(u32 index)
 {
@@ -124,6 +132,13 @@ static inline u32 getesp(void) {
     return esp;
 }
 
+static inline u32 rol(u32 val, u16 rol) {
+    u32 res;
+    asm volatile("roll %%cl, %%eax"
+                 : "=a" (res) : "a" (val), "c" (rol));
+    return res;
+}
+
 static inline void outb(u8 value, u16 port) {
     __asm__ __volatile__("outb %b0, %w1" : : "a"(value), "Nd"(port));
 }
@@ -175,6 +190,14 @@ static inline void outsl(u16 port, u32 *data, u32 count) {
                  : "+c"(count), "+S"(data) : "d"(port) : "memory");
 }
 
+/* Compiler barrier is enough as an x86 CPU does not reorder reads or writes */
+static inline void smp_rmb(void) {
+    barrier();
+}
+static inline void smp_wmb(void) {
+    barrier();
+}
+
 static inline void writel(void *addr, u32 val) {
     barrier();
     *(volatile u32 *)addr = val;
-- 
cgit 1.2.3-korg