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pvh: Add unit tests for initial sregs and control registers
Validate correct GDT entries, initial segment configuration, and control register bits that are required by PVH boot protocol. Signed-off-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
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@ -355,6 +355,36 @@ mod tests {
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assert_eq!(0, sregs.tr.avl);
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assert_eq!(0, sregs.tr.avl);
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assert_eq!(X86_CR0_PE, sregs.cr0);
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assert_eq!(X86_CR0_PE, sregs.cr0);
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assert_eq!(EFER_LME | EFER_LMA, sregs.efer);
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assert_eq!(EFER_LME | EFER_LMA, sregs.efer);
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configure_segments_and_sregs(&gm, &mut sregs, BootProtocol::PvhBoot).unwrap();
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assert_eq!(0x0, read_u64(&gm, BOOT_GDT_START));
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assert_eq!(
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0xcf9b000000ffff,
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read_u64(&gm, BOOT_GDT_START.unchecked_add(8))
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);
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assert_eq!(
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0xcf93000000ffff,
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read_u64(&gm, BOOT_GDT_START.unchecked_add(16))
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);
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assert_eq!(
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0x8b0000000067,
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read_u64(&gm, BOOT_GDT_START.unchecked_add(24))
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);
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assert_eq!(0x0, read_u64(&gm, BOOT_IDT_START));
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assert_eq!(0, sregs.cs.base);
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assert_eq!(0xffffffff, sregs.ds.limit);
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assert_eq!(0x10, sregs.es.selector);
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assert_eq!(1, sregs.fs.present);
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assert_eq!(1, sregs.gs.g);
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assert_eq!(0, sregs.ss.avl);
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assert_eq!(0, sregs.tr.base);
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assert_eq!(0, sregs.tr.g);
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assert_eq!(0x67, sregs.tr.limit);
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assert_eq!(0xb, sregs.tr.type_);
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assert_eq!(0, sregs.tr.avl);
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assert_eq!(X86_CR0_PE, sregs.cr0);
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assert_eq!(0, sregs.cr4);
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}
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}
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#[test]
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#[test]
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