Displaying 5 results from an estimated 5 matches for "switch32_ptr".
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switch16_ptr
2007 Apr 18
0
[RFC, PATCH 11/24] i386 Vmi segment changes
...void setup_x86_bogus_stack(unsi
memcpy((void *)(stack_bot + iret_frame16_off), ®s->eip, 20);
/* fill in the switch pointers */
switch16_ptr[0] = (regs->esp & 0xffff0000) | iret_frame16_off;
- switch16_ptr[1] = __ESPFIX_SS;
+ switch16_ptr[1] = __ESPFIX_SS | get_kernel_rpl();
switch32_ptr[0] = (unsigned long)stk + sizeof(struct pt_regs) +
8 - CPU_16BIT_STACK_SIZE;
- switch32_ptr[1] = __KERNEL_DS;
+ switch32_ptr[1] = __KERNEL_DS | get_kernel_rpl();
}
fastcall unsigned char * fixup_x86_bogus_stack(unsigned short sp)
2007 Apr 18
0
[RFC, PATCH 11/24] i386 Vmi segment changes
...void setup_x86_bogus_stack(unsi
memcpy((void *)(stack_bot + iret_frame16_off), ®s->eip, 20);
/* fill in the switch pointers */
switch16_ptr[0] = (regs->esp & 0xffff0000) | iret_frame16_off;
- switch16_ptr[1] = __ESPFIX_SS;
+ switch16_ptr[1] = __ESPFIX_SS | get_kernel_rpl();
switch32_ptr[0] = (unsigned long)stk + sizeof(struct pt_regs) +
8 - CPU_16BIT_STACK_SIZE;
- switch32_ptr[1] = __KERNEL_DS;
+ switch32_ptr[1] = __KERNEL_DS | get_kernel_rpl();
}
fastcall unsigned char * fixup_x86_bogus_stack(unsigned short sp)
2007 Apr 18
2
[PATCH 1/3] Paravirtualization: Kernel Ring Cleanups
...void setup_x86_bogus_stack(unsi
memcpy((void *)(stack_bot + iret_frame16_off), ®s->eip, 20);
/* fill in the switch pointers */
switch16_ptr[0] = (regs->esp & 0xffff0000) | iret_frame16_off;
- switch16_ptr[1] = __ESPFIX_SS;
+ switch16_ptr[1] = __ESPFIX_SS | get_kernel_rpl();
switch32_ptr[0] = (unsigned long)stk + sizeof(struct pt_regs) +
8 - CPU_16BIT_STACK_SIZE;
- switch32_ptr[1] = __KERNEL_DS;
+ switch32_ptr[1] = __KERNEL_DS | get_kernel_rpl();
}
fastcall unsigned char * fixup_x86_bogus_stack(unsigned short sp)
diff -urpN --exclude TAGS -X /home/rusty/devel/kernel/kernel-p...
2007 Apr 18
2
[PATCH 1/3] Paravirtualization: Kernel Ring Cleanups
...void setup_x86_bogus_stack(unsi
memcpy((void *)(stack_bot + iret_frame16_off), ®s->eip, 20);
/* fill in the switch pointers */
switch16_ptr[0] = (regs->esp & 0xffff0000) | iret_frame16_off;
- switch16_ptr[1] = __ESPFIX_SS;
+ switch16_ptr[1] = __ESPFIX_SS | get_kernel_rpl();
switch32_ptr[0] = (unsigned long)stk + sizeof(struct pt_regs) +
8 - CPU_16BIT_STACK_SIZE;
- switch32_ptr[1] = __KERNEL_DS;
+ switch32_ptr[1] = __KERNEL_DS | get_kernel_rpl();
}
fastcall unsigned char * fixup_x86_bogus_stack(unsigned short sp)
diff -urpN --exclude TAGS -X /home/rusty/devel/kernel/kernel-p...
2007 Apr 18
33
[RFC PATCH 00/33] Xen i386 paravirtualization support
Unlike full virtualization in which the virtual machine provides
the same platform interface as running natively on the hardware,
paravirtualization requires modification to the guest operating system
to work with the platform interface provided by the hypervisor.
Xen was designed with performance in mind. Calls to the hypervisor
are minimized, batched if necessary, and non-critical codepaths