Thanks Igor. The RIP isn't mapped in any elf. So probably my load address is problematic.
Regards Himanshu On Wed, Dec 14, 2016 at 8:25 PM, Igor Skochinsky via coreboot < [email protected]> wrote: > Hello Himanshu, > > > Wednesday, December 14, 2016, 10:11:57 AM, you wrote: > > > Hi, > > I am working on a hypvervisor and am using coreboot + FILO as guest BIOS. > While things were fine a while back, it has stopped working. I see that my > hypervisor can't handle address 0xFFFFFC while coreboot's RIP is at > 0xfff81e41. > > The exact register dump of guest is as follow: > > [guest0/uart0] (__handle_vm_exception:558) ERROR: No region mapped to > guest physical: 0xfffffc > > GUEST guest0/vcpu0 dump state: > > RAX: 0x9fe80 RBX: 0xfffff8 RCX: 0x1b RDX: 0x53a11439 > R08: 0x0 R09: 0x0 R10: 0x0 R11: 0x0 > R12: 0x0 R13: 0x0 R14: 0x0 R15: 0x0 > RSP: 0x9fe54 RBP: 0xa0000 RDI: 0xfff801e4 RSI: 0x9fe80 > RIP: 0xfff81e41 > > CR0: 0xe0000011 CR2: 0x0 CR3: 0xa23000 CR4: 0x0 > CS : Sel: 0x00000008 Limit: 0xffffffff Base: 0x00000000 (G: 1 DB: 1 > L: 0 AVL: 0 P: 1 DPL: 0 S: 1 Type: 11) > DS : Sel: 0x00000010 Limit: 0xffffffff Base: 0x00000000 (G: 1 DB: 1 > L: 0 AVL: 0 P: 1 DPL: 0 S: 1 Type: 3) > ES : Sel: 0x00000010 Limit: 0xffffffff Base: 0x00000000 (G: 1 DB: 1 > L: 0 AVL: 0 P: 1 DPL: 0 S: 1 Type: 3) > SS : Sel: 0x00000010 Limit: 0xffffffff Base: 0x00000000 (G: 1 DB: 1 > L: 0 AVL: 0 P: 1 DPL: 0 S: 1 Type: 3) > FS : Sel: 0x00000010 Limit: 0xffffffff Base: 0x00000000 (G: 1 DB: 1 > L: 0 AVL: 0 P: 1 DPL: 0 S: 1 Type: 3) > GS : Sel: 0x00000010 Limit: 0xffffffff Base: 0x00000000 (G: 1 DB: 1 > L: 0 AVL: 0 P: 1 DPL: 0 S: 1 Type: 3) > GDT : Sel: 0x00000000 Limit: 0x0000001f Base: 0xfff80200 (G: 0 DB: 0 > L: 0 AVL: 0 P: 0 DPL: 0 S: 0 Type: 0) > LDT : Sel: 0x00000000 Limit: 0x0000ffff Base: 0x00000000 (G: 0 DB: 0 > L: 0 AVL: 0 P: 0 DPL: 0 S: 0 Type: 0) > IDT : Sel: 0x00000000 Limit: 0x00000000 Base: 0x00000000 (G: 0 DB: 0 > L: 0 AVL: 0 P: 0 DPL: 0 S: 0 Type: 0) > TR : Sel: 0x00000000 Limit: 0x0000ffff Base: 0x00000000 (G: 1 DB: 0 > L: 1 AVL: 1 P: 0 DPL: 0 S: 0 Type: 0) > RFLAGS: 0xa [ ] > > I want to know which binary file (.o) should I disassemble to look at the > RIP? > > I was looking at > objdump -D -mi386 -Maddr16,data16 generated/ramstage.o > > but this is prior to linking and thus only has offsets. > > -- > > Regards > [Himanshu Chauhan] > > > Check the CBFS map at the end of build and the .elf files (not .o) in the > build directory. > > > > *-- WBR, Igor mailto:[email protected] > <[email protected]>* > > -- > coreboot mailing list: [email protected] > https://www.coreboot.org/mailman/listinfo/coreboot > -- Regards [Himanshu Chauhan]
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