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335455 |
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20-Jun-2018 |
kib |
MFC r335072, r335089, r335131, r335132: Enable eager FPU context switch on i386 and amd64.
CVE: CVE-2018-3665 Tested by: emaste (smoke boot)
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#
282065 |
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27-Apr-2015 |
kib |
MFC r281495: Add config option PAE_TABLES for the i386 kernel. It switches pmap to use PAE format for the page tables, but does not incur other consequences of the full PAE config. In particular, vm_paddr_t and bus_addr_t are left 32bit, and max supported memory is still limited by 4GB.
The option allows to have nx permissions for memory mappings on i386 kernel, while keeping the usual i386 KBI and avoiding the kernel data sizing problems typical for the PAE config.
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#
271999 |
|
22-Sep-2014 |
jhb |
MFC 270850,271053,271192,271717: Save and restore FPU state across suspend and resume on i386. - Create a separate structure for per-CPU state saved across suspend and resume that is a superset of a pcb. - Store the FPU state for suspend and resume in the new structure (for amd64, this moves it out of the PCB) - On both i386 and amd64, all of the FPU suspend/resume handling is now done in C.
Approved by: re (hrs)
|
#
282065 |
|
27-Apr-2015 |
kib |
MFC r281495: Add config option PAE_TABLES for the i386 kernel. It switches pmap to use PAE format for the page tables, but does not incur other consequences of the full PAE config. In particular, vm_paddr_t and bus_addr_t are left 32bit, and max supported memory is still limited by 4GB.
The option allows to have nx permissions for memory mappings on i386 kernel, while keeping the usual i386 KBI and avoiding the kernel data sizing problems typical for the PAE config.
|
#
271999 |
|
22-Sep-2014 |
jhb |
MFC 270850,271053,271192,271717: Save and restore FPU state across suspend and resume on i386. - Create a separate structure for per-CPU state saved across suspend and resume that is a superset of a pcb. - Store the FPU state for suspend and resume in the new structure (for amd64, this moves it out of the PCB) - On both i386 and amd64, all of the FPU suspend/resume handling is now done in C.
Approved by: re (hrs)
|