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NetBSD/sys/arch/i386/include/kvm86.h

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add kvm86_incall again which got lost in the SMP merge
2002-10-02 18:54:43 +04:00
/* $NetBSD: kvm86.h,v 1.4 2002/10/02 14:54:43 drochner Exp $ */
This is a (still experimental) framework to run BIOS code in a virtual 8086 machine. Ifff it works, it is much easier and more elegant than going to real real mode: -simpler code -no need for "identity" memory mappings -easy passing of buffers for bulk data to functions -some more control There is no interrupt support ATM, and it lacks a function to access random virtual memory of the VM. MP issues to consider.
2002-07-07 16:56:34 +04:00
void kvm86_init(void);
void kvm86_gpfault(struct trapframe *);
add kvm86_incall again which got lost in the SMP merge
2002-10-02 18:54:43 +04:00
extern int kvm86_incall;
This is a (still experimental) framework to run BIOS code in a virtual 8086 machine. Ifff it works, it is much easier and more elegant than going to real real mode: -simpler code -no need for "identity" memory mappings -easy passing of buffers for bulk data to functions -some more control There is no interrupt support ATM, and it lacks a function to access random virtual memory of the VM. MP issues to consider.
2002-07-07 16:56:34 +04:00
void *kvm86_bios_addpage(u_int32_t);
void kvm86_bios_delpage(u_int32_t, void *);
add a function to read from the BIOS vm86 (most of it is already mapped to KVM, but it appears easier to me to do it this way instead of a lot of range checks)
2002-07-10 23:09:35 +04:00
size_t kvm86_bios_read(u_int32_t, char *, size_t);
This is a (still experimental) framework to run BIOS code in a virtual 8086 machine. Ifff it works, it is much easier and more elegant than going to real real mode: -simpler code -no need for "identity" memory mappings -easy passing of buffers for bulk data to functions -some more control There is no interrupt support ATM, and it lacks a function to access random virtual memory of the VM. MP issues to consider.
2002-07-07 16:56:34 +04:00
int kvm86_bioscall(int, struct trapframe *);
/* for migration from bioscall() */
#include <machine/bioscall.h>
int kvm86_bioscall_simple(int, struct bioscallregs *);