[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Xen-devel] [RFC v3 1/6] xen/arm: Add basic save/restore support for ARM
- To: Wei Huang <w1.huang@xxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxx
- From: Julien Grall <julien.grall@xxxxxxxxxx>
- Date: Fri, 09 May 2014 10:06:18 +0100
- Cc: keir@xxxxxxx, ian.campbell@xxxxxxxxxx, stefano.stabellini@xxxxxxxxxxxxx, andrew.cooper3@xxxxxxxxxx, tim@xxxxxxx, jaeyong.yoo@xxxxxxxxxxx, jbeulich@xxxxxxxx, ian.jackson@xxxxxxxxxxxxx, yjhyun.yoo@xxxxxxxxxxx
- Delivery-date: Fri, 09 May 2014 09:06:26 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
Hi Wei,
On 08/05/14 22:18, Wei Huang wrote:
+void arch_hvm_save(struct domain *d, struct hvm_save_header *hdr)
+{
+ hdr->magic = HVM_ARM_FILE_MAGIC;
+ hdr->version = HVM_ARM_FILE_VERSION;
+ hdr->cpuinfo = READ_SYSREG32(MIDR_EL1);
You can directly use boot_cpu_data.midr.bits.
+}
+
+int arch_hvm_load(struct domain *d, struct hvm_save_header *hdr)
+{
+ uint32_t cpuinfo;
+
+ if ( hdr->magic != HVM_ARM_FILE_MAGIC )
+ {
+ printk(XENLOG_G_ERR "HVM%d restore: bad magic number %#"PRIx32"\n",
+ d->domain_id, hdr->magic);
+ return -EINVAL;
+ }
+
+ if ( hdr->version != HVM_ARM_FILE_VERSION )
+ {
+ printk(XENLOG_G_ERR "HVM%d restore: unsupported version %u\n",
+ d->domain_id, hdr->version);
+ return -EINVAL;
+ }
+
+ cpuinfo = READ_SYSREG32(MIDR_EL1);
Same here.
--
Julien Grall
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel
|
