QOM CPUState refactorings / X86CPU
* X86CPU IA32e 1GB paging support
* Performance quickfix for CPU() cast macro
# gpg: Signature made Mon 31 Mar 2014 18:33:27 BST using RSA key ID
3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg: aka "Andreas Färber <afaerber@suse.com>"
* remotes/afaerber/tags/qom-cpu-for-2.0:
cpu: Avoid QOM casts for CPU()
target-i386: x86_cpu_get_phys_page_debug(): support 1GB page translation
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
#define TYPE_CPU "cpu"
-#define CPU(obj) OBJECT_CHECK(CPUState, (obj), TYPE_CPU)
+/* Since this macro is used a lot in hot code paths and in conjunction with
+ * FooCPU *foo_env_get_cpu(), we deviate from usual QOM practice by using
+ * an unchecked cast.
+ */
+#define CPU(obj) ((CPUState *)(obj))
+
#define CPU_CLASS(class) OBJECT_CLASS_CHECK(CPUClass, (class), TYPE_CPU)
#define CPU_GET_CLASS(obj) OBJECT_GET_CLASS(CPUClass, (obj), TYPE_CPU)
pdpe = ldq_phys(cs->as, pdpe_addr);
if (!(pdpe & PG_PRESENT_MASK))
return -1;
+
+ if (pdpe & PG_PSE_MASK) {
+ page_size = 1024 * 1024 * 1024;
+ pte = pdpe & ~( (page_size - 1) & ~0xfff);
+ pte &= ~(PG_NX_MASK | PG_HI_USER_MASK);
+ goto out;
+ }
+
} else
#endif
{
pte = pte & env->a20_mask;
}
+#ifdef TARGET_X86_64
+out:
+#endif
page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
paddr = (pte & TARGET_PAGE_MASK) + page_offset;
return paddr;